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Field Experiment

Field Experiment
Start
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Experience 3,950
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Rewards 13 45 74
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  • 1 Objectives
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Help LOU-C run her tests in Whaler's Nook.

  • Activate the Geoscanner
  • Talk to LOU-C Fitzcog in Whaler's Nook.

Description

Thanks to you, our geological survey is now operating at nearly 96% efficiency!

<LOU-C furrows her eyebrows.>

Those are rookie numbers.

Help me run the samples you collected through my Geoscanner 289-07. It should give us a baseline as to what exactly is going on at the plateau.

You will receive:

  • +150 reputation with Dragonscale Expedition

For science!

They say to expect the unexpected, but wow... this is unprecedented!

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N

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Dragonflight

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We have moved to Warcraft Wiki. Click here for information and the new URL.

Field Experiment

Field Experiment
Start
End
Level 65-68
Category
Experience 3,950
Reputation +150
Rewards 13 45 74
Shareable Yes
Previous , ,
Next &

Neutral

  • 1 Objectives
  • 2 Description
  • 5 Completion
  • 7 Progression
  • 8 Patch changes
  • 9 External links

Objectives [ ]

Help LOU-C run her tests in Whaler's Nook .

  • Activate the Geoscanner
  • Talk to LOU-C Fitzcog in Whaler's Nook.

Description [ ]

Thanks to you, our geological survey is now operating at nearly 96% efficiency!

<LOU-C furrows her eyebrows.>

Those are rookie numbers.

Help me run the samples you collected through my Geoscanner 289-07. It should give us a baseline as to what exactly is going on at the plateau.

Rewards [ ]

You will receive:

  • +150 reputation with Dragonscale Expedition

Progress [ ]

For science!

Completion [ ]

They say to expect the unexpected, but wow... this is unprecedented!

Progression [ ]

N

Patch changes [ ]

Dragonflight

External links [ ]

  • World of Warcraft
  • 2 Xal'atath
  • 3 Sylvanas Windrunner

medRxiv

Cadherin-26 drives macrophage alternative activation via suppressing STUB1-mediated IL-4Rα ubiquitination in asthma

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Rationale:IL-4 receptor (IL-4R)-mediated alternative activation of macrophage drives type 2 airway inflammation. Cadherin-26 (CDH26) upregulates epithelial type II IL-4R signaling in asthma. However, whether CDH26 contributes to type I IL-4R-mediated macrophage activation and the mechanism by which CDH26 upregulates IL-4R expression remains unknown. Objectives: To investigate whether CDH26 promotes macrophage alternative activation via suppressing IL-4Rα ubiquitination-proteasomal degradation. Methods: CDH26 expression in bronchoalveolar lavage cells of asthma patients was examined using quantitative PCR and immunostaining. Airway inflammation and macrophage activation were assessed in ovalbumin-sensitized and challenged macrophage-specific Cdh26-deficient mice. Mechanistic experiments included IL-4Rα degradation and ubiquitination assay, CDH26 co-immunoprecipitation and mass spectrometry analysis. Cdh26 siRNA encapsulated lipid nanoparticles were used to treat the mouse model. Measurements and Results: CDH26 expression was enhanced in bronchoalveolar lavage cells from patients with eosinophilic asthma and was localized to lung macrophages. Airway eosinophilia, mucus overproduction and macrophage alternative activation were significantly suppressed in ovalbumin-challenged macrophage-specific Cdh26-deficient mice compared to control mice. Cdh26 deficiency inhibits IL-4Rα expression and STAT6 phosphorylation in macrophages in vitro. Furthermore, CDH26 knockdown enhances whereas CDH26 overexpression suppresses IL-4Rα ubiquitination and proteasomal degradation. Mechanistically, CDH26 directly interacts with STUB1 and suppresses the binding of STUB1 to IL-4Rα and subsequent ubiquitination-proteasomal degradation. Cdh26 siRNA encapsulated lipid nanoparticles markedly alleviate airway inflammation, mucus overproduction and macrophage alternative activation in the mouse model. Conclusions: CDH26 interacts with STUB1 and suppresses STUB1-mediated IL-4Rα ubiquitination-proteasomal degradation, thereby amplifying IL-4R signaling in macrophages in asthma. CDH26 is a potential therapeutic target for asthma.

Competing Interest Statement

The authors have declared no competing interest.

Funding Statement

This work is supported by National Natural Science Foundation of China (grant 82170036), Key Research and Development Program of Hubei Province (grant 2024BCB280), Innovation and Translation Project of Tongji Hospital (grant 2023CXZH006), Natural Science Foundation of Hubei Province (2024AFB622), Research Foundation of Tongji Hospital (2023B06)

Author Declarations

I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.

The details of the IRB/oversight body that provided approval or exemption for the research described are given below:

The study was approved by the ethics committee of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology.

I confirm that all necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived, and that any patient/participant/sample identifiers included were not known to anyone (e.g., hospital staff, patients or participants themselves) outside the research group so cannot be used to identify individuals.

I understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).

I have followed all appropriate research reporting guidelines, such as any relevant EQUATOR Network research reporting checklist(s) and other pertinent material, if applicable.

Data Availability

All data produced in the present study are available upon reasonable request to the authors.

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  • Field Experiment
  • Medicine and Healthcare
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Experiments

Louis Cohen, Lawrence Manion, Keith Morrison in Research Methods in Education , 2017

The design experiment can be considered as a special case of a field experiment; it has its roots in experimental research, both in ‘true’ and quasi-experiments, and is intended to provide formative feedback on, for example, practical problems in, say, teaching and learning, and to bridge the potential gap between research and practice (Brown, 1992, p. 143; Reinking and Bradley, 2008; Bradley and Reinking, 2011; Engeström, 2011; Seel, 2011, p. 925; Anderson and Shattuck, 2012; Laurillard, 2012), in other words, to enhance the external validity of an experiment. The design experiment strives to avoid the artificial world of the laboratory and the lack of applicability to ‘real-world problems’ that follows from this artificial condition (Bradley and Reinking, 2011; Reinking and Bradley, 2008; Seel, 2011; Laurillard, 2012), and to have direct practical relevance to the complex world of teaching, learning and classrooms. Given their intended direct relevance to classrooms and the field nature – the diverse, complex, ‘real world’ of an actual classroom – design experiments may not be able to fulfil the requirements of a true experiment, for example, in randomization or in the application of controls. In these respects, design experiments are similar to action research (cf. Anderson and Shattuck, 2012).

External validity and public health

Sridhar Venkatapuram, Alex Broadbent in The Routledge Handbook of Philosophy of Public Health , 2023

The other reason they give for doubting the trade-off is because the notion of the “artificiality” of experimental settings, used to justify its existence, is vague and ambiguous (Jimenez-Buedo and Miller 2010: 307). The difficulty in blaming the artificiality of experimental environments for external validity failure is that none of the proponents of this view explain in exactly which respects the environments are meant to differ. In any case, it is clear that there is a lot more to the external validity problem than just a concern about the artificiality of experimental settings. This can be seen by considering the case of so-called field experiments or observational studies, where causes and effects are observed in real-world settings. In these studies, there is nothing artificial about the experimental context; yet, the external validity question is still a legitimate concern. This is because we can have cases where a field experiment exposes a clear causal relation evident in one context, but this causal relation does not hold in a new context because of different confounding factors, for example.

Randomization Tests or Permutation Tests? A Historical and Terminological Clarification

Vance W. Berger in Randomization, Masking, and Allocation Concealment , 2017

Interestingly, another statistical heavyweight, Jerzy Neyman, did something very similar with respect to giving credit to Fisher for the randomization design principle as Edward Pitman did with respect to giving credit to Fisher for developing the test. In his notorious paper, read before the Industrial and Agricultural Research Section of the Royal Statistical Society, Neyman (1935, p. 109) stated:Owing to the work of R. A. Fisher, “Student” and their followers, it is hardly possible to add anything essential to the present knowledge concerning local experiments…. One of the most important achievements of the English School is their method of planning field experiments known as the method of Randomized Blocks and Latin Squares.

Does an economic incentive affect provider behavior? Evidence from a field experiment on different payment mechanisms

Published in Journal of Medical Economics , 2019

Xiaoyu Xi, Ennan Wang, Qianni Lu, Piaopiao Chen, Tian Wo, Kammy Tang

We used a field experiment study design to examine the behaviors of physicians. If a laboratory experiment were performed instead of a field experiment, the conclusions might not be valid due to hyper-abstraction and simplification26. However, the participants in a field study were not restricted to college students, instead, they were adults in society. Moreover, the experimental environment was not confined to a laboratory. A field experiment, as defined by Harrison and List27, was an experiment conducted in multiple locations, including laboratories and actual environments. Its participants included both students and non-college adults. Therefore, under the real social conditional, the experiment subjects could make realistic choices. Above all, because of the differences between the experimental environment and subjects, the field experiment could represent actual conditions in a real environment, and subjects might act instinctively as they do in daily life, increasing the external validity of results28.

Employees’ Improvisational Behavior: Exploring the Role of Leader Grit and Humility

Published in Human Performance , 2022

Arménio Rego, Andreia Vitória, Miguel Pina e Cunha, Bradley P. Owens, Ana Ventura, Susana Leal, Camilo Valverde, Rui Lourenço-Gil

While providing overall support for the proposed causal direction of our model, our research is not without limitations. First, other causalities are possible. For example, employees may develop higher self-efficacy, hope, and optimism after making improvisations that are revealed to be successful. It is also possible that leaders adopt more perseverant efforts in pursuing challenging goals as a consequence of their higher employees’ PsyCap. Although the experiment was designed to enhance realism, which enhances confidence in hypothesized causality, it also suffers from modest external validity and other limitations (Lonati et al., 2018). Future studies should include covariates to rule out confounding and endogeneity effects, should adopt other experimental designs, and should be carried out in real organizational settings (Antonakis, Bendahan, Jacquart, & Lalive, 2014). A field experiment would represent a very important step forward in that endeavor, although abundant obstacles (methodological and practical) may make the endeavor unfeasible. Second, future studies may explore boundary conditions of the PsyCap-improvisation relationship. For example, is the relationship more positive when employees experience psychological safety?

Impact of safety training and interventions on training-transfer: targeting migrant construction workers

Published in International Journal of Occupational Safety and Ergonomics , 2020

Rahat Hussain, Akeem Pedro, Do Yeop Lee, Hai Chien Pham, Chan Sik Park

Notwithstanding, even though the culturally diverse nature of the work crews is a valuable aspect to evaluate migrant worker safety performance, it is hard to engage labourers for such practice. Similarly, the extent of interventions being implemented during and after training sessions is difficult to control. To address these challenges, the experiment design phase of this research has focused more on the reasons for training failures from both the literature and current migrant worker issues in industry. The approach presented in this study measures the combined impact of all interventions in a field experiment; however, in order to improve the reliability and validity in measurement, the individual effects of interventions should also be considered in further studies.

Related Knowledge Centers

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field experiment wow

Champion decathlete Damian Warner is the oldest in the field – and ready to wow at the Olympics again

Damian Warner’s gold in Tokyo set an Olympic record in one of the oldest events at the Games, and arguably its most difficult

The last time most Canadians watched Damian Warner, it was the Tokyo Olympics in 2021, and he was making his case as the world’s best athlete.

The decathlete from London, Ont., led all competitors from start to finish with a record-breaking performance in the gruelling 10-event athletics competition. It was contested over two days in blistering August temperatures, in a stadium with no fans to applaud the accomplishments.

field experiment wow

With an impressive score of 9,018 points, Canada's Damian Warner won gold for men's decathlon at the 2020 Tokyo Olympics. The Canadian Press

Warner scored 9,018 points – eclipsing 9,000 is very rare in decathlon – and won gold in Tokyo, setting an Olympic record in one of the oldest events at the Games, and arguably its most difficult – competing at shot put, pole vault, high jump, javelin, discus, and long jump, plus four running races.

Recognizing his feat, Team Canada chose him as flag bearer. He led compatriots wearing masks and Canadian jean jackets in closing out an Olympics full of emotional performances and pandemic restrictions.

Now at 34, Warner is competing in his fourth Summer Games in Paris, starting Friday. He has improved with each Olympics – fifth at London 2012, bronze in Rio 2016, before gold in Tokyo. His performance in the long jump was so good it would have earned him bronze if he’d competed in that individual event. He’s in TV commercials, on grocery store billboards and on Cheerios boxes. So does he feel pressure to repeat as Olympic gold medalist?

“Only the pressure that I put on myself. It’s important to me and something that I believe that I can do,” he said. “But I’m not attuned to any outside pressure.”

field experiment wow

Damian Warner competes in the decathlon long jump event at the Tokyo 2020 Olympics. DYLAN MARTINEZ/Reuters

He is the favourite in Paris. Canada was supposed to have a formidable one-two punch in the decathlon, with Warner and Pierce LePage, countrymen and the world’s two best. Warner is Olympic champion, but LePage won the world championship last year in Budapest, Hungary, with 8,909 points, second highest in the history of the worlds, while Warner finished second. The two were expected to jockey for gold in Paris.

But LePage isn’t competing in Paris. The 28-year-old from Whitby, Ont., pulled out of with a back injury, announcing it on Instagram on July 17 . LePage said he had suffered a herniated disc in April and needs surgery on his back.

LePage tried until the last minute, testing himself in events but found, “there was no power, nothing was really going on.” He said he made the tough decision to withdraw rather than risk further injury, to miss Paris and focus on getting healthy to defend his world title next year.

“The last couple of months have been pretty draining, to say the least,” LePage said in the Instagram video. “It’s really tough to see your dream kind of slip away.”

field experiment wow

Canadian decathletes Damian Warner, left, and Pierce Lepage compete at the 2023 world championship in Budapest. Suffering from a recent back injury, LePage won’t compete alongside Warner at the Paris Olympics. FABRIZIO BENSCH/Reuters

LePage had finished fifth at the Tokyo Olympics in 2021, then was runner-up at the 2022 worlds before winning in 2023. But LePage had not competed in a full decathlon since. He missed the Canadian Olympic trials in late June.

The decathlon competition got another jolt on Thursday when world record holder Kevin Mayer of France, 32, was ruled out of the event because of a thigh injury. The two-time Olympic silver medalist picked up the injury as he fell heavily during the 110-metre hurdles leg of a triathlon at the Paris Diamond League earlier this month.

While LePage is not in Paris, Warner said the rise of his fellow Canadian helped motivate him, too.

“His success has kind of made me be like ‘okay, let’s keep doing this,’” Warner said of LePage. “My drive to succeed in the sport is higher than it’s ever been, and I probably owe a lot of that to Pierce and his emergence in the sport.”

The two decathletes know each other well, but they don’t train together. LePage trains mostly at Toronto’s York University. Warner has always remained in London, Ont., training at Western University with Gar Leyshon and Dennis Nielsen, the same high-school teachers who noticed his athletic potential, supported the kid being raised by a single mother, and got him started in basketball, football and track and field.

That loyalty infused his training for Tokyo during the pandemic. With sports facilities closed, the same coaches and his community in London gave materials, equipment and muscle to help turn an aged hockey arena into a makeshift temporary training facility for Warner. They fashioned an ad hoc track and pits so he could practise his events, bringing in planks of wood, sand and gym mats. Many of the distances weren’t right inside that rink, so he’d sprint and finish into a crash mat. He trained in that improvisational way, while many of his competitors around the world prepared for the Olympics as usual, without COVID-19 restrictions.

“Our workload was way less than normal, and at the time, I was thinking ‘this is not going to be enough to achieve our dreams.’ But we went and scored higher than we’ve ever scored, and we won the gold medal,” Warner said. “So I had to look back and say maybe these ideas that I had in my head were wrong, all this training that I thought I needed to do.”

field experiment wow

While his training for Paris has been more conventional, back at Western’s track, his 2021 experience changed how his team designs his workload.

“I’m 34 years old now, I’m the oldest athlete in the field, and I can’t do as much as someone that’s 19 or 20,” Warner said. “So what are the important things that I need to do so that I can stay healthy but also have enough fitness to perform well? We try to do as little as possible, and I think that we learned that in 2021.”

Warner and partner Jen Cotton have a three-year-old son, Theo, and await another baby due this fall. While Warner used to train six days a week for more than four hours at a time, now he trains five days a week, for two or three hours.

Warner doesn’t focus on hitting any particular score in Paris. He has a special calculator on his phone that computes decathlon points for each event, based on the time or distance achieved. He used to obsess over projecting how many total points he would need to win a competition, and then fixate on achieving that number as he progressed in the events.

But from experience, he’s learned that calculating a points total to chase is a faulty goal. Every decathlon has different weather and conditions, and you can’t control your competitors’ performances. One day it might take 8,800 points to win. On another, 8,700 might suffice. He now limits his use of the calculator.

“You’re trying to chase a ghost at that point,” Warner said. “You just need to go out there, take it all in, and compete against the competitors that are there on that day.”

field experiment wow

Damian Warner competes in the men's decathlon javelin throw during the Tokyo 2020 Olympic Games. BEN STANSALL/AFP/Getty Images

Getting all the equipment to the track and in place for each event is dizzying. On five of his past six trips to competitions, his bags have been lost, with all his equipment and the 10 different pairs of shoes he uses during events.

The sprint calls for light spikes, he said, while the shoes he wears for shot put have no spikes at all. For javelin, he needs a strong, bulky shoe. And don’t get him started on flying overseas with the pole-vault poles – an item many airlines quickly decline.

“It’s one of the more unglamorous parts about being a decathlete,” Warner said. “Lugging around all the equipment that you need.”

The Olympic decathlon begins at 10 a.m. on Aug. 2 with the 100-metre event, the first of five events that day, with five more on Day 2, concluding with the 1,500-metre race late on the night of Aug. 3. Warner has learned over years of meets that if he tries to remain mentally dialled into the competition for every hour of that two-day period, he will exhaust himself.

field experiment wow

Damian Warner competes in the men's decathlon pole vault event on day thirteen of the Tokyo 2020 Olympic Games. Cameron Spencer/Getty Images

While he used to be very serious throughout, now he’s more conversational with his competitors and coaches between events. After the first day of competition, he tries to eat as much food as he can handle, and then relaxes in his room, often tuning out over some episodes of The Office before sleeping in preparation to resume the decathlon the next morning.

Just as in Tokyo, heat is an issue in Paris. Warner seems unbothered by the idea of sprinting, throwing and jumping in sizzling temperatures. He turns it into a positive.

“I prefer when it’s really hot, because I feel like being an old man I don’t have to warm up as much,” Warner said with a laugh. “I’ve competed in really cold weather, really hot weather, rainy weather, so I’m prepared for anything.”

Because decathlons are so gruelling, just finishing is a source of pride, and the decathletes and coaches often share a lengthy time together at the end, hugging and congratulating each other.

“If somebody beats me, I’ll shake their hand,” Warner said. “And if not, then I’ll stand on top of the podium.”

He thinks it’s a shame that he accepts the medal on the podium by himself, that he’s alone for that belting-out-the-anthem moment, when he knows the contribution of his four coaches – Leyshon, Nielsen, Vickie Croley and Dave Collins – plus his sport psychologist, agent, training partners and his family.

“I don’t want to be the centre of attention. I don’t want to be the person that gets all the praise,” Warner said. “While I get the medal, I feel like that medal should be shared with a lot of different people, because they worked just as hard as I did.”

field experiment wow

At 34, Damian Warner is competing in his fourth Summer Games in Paris. Cole Burston/The Globe and Mail

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9 Flowering Succulent Plants That’ll Wow You With Their Blooms

Say yes to these low maintenance plants with gorgeous blooms.

field experiment wow

Copyright Eric Reichbaum/Getty Images

Succulents are known for their ultra low-maintenance care requirements, fascinating silhouettes, and thick “leaves.” While we often think of succulents as simply green plants, several varieties put on a dazzling display of colorful blooms . Some of these flowering succulent plants blossom year-round while others have seasonal flowers. There’s even one that blooms for just one 24-hour period. Consider adding any of these beautiful succulents to your growing collection.

  • Melvin Cubian, a gardening expert with PlantIn
  • Evan Torchio, founder at Tree Menders
  • Lisa Root, owner of Root Houseplants
  • JP Varvarigos, 3rd generation florist and owner of Wellington Florist

Maria Mosolova/Getty Images

The moss rose ( Portulaca grandiflora ) is an annual succulent that's primarily grown outdoors since it has a creeping habit that provides beautiful ground cover . “They are a gardener’s favorite for highlighting bare spots, primarily in limited spaces like vertical gardens, windows, or hanging baskets, due to their dramatic weeping vines studded with stunning flowers,” notes Melvin Cubian, a gardening expert with PlantIn . 

It’s not technically a rose, he adds, but it does produce a similar showy flower alongside its succulent stems. He says that many varieties are also created to showcase numerous flowers with different colors all at once, which usually bloom in the warm season and continuously till the first autumn frost. 

String of Pearls

Oscar Yoshinori Toyofuku/Getty Images

In its native environment (Cape Province), string of pearls ( Senecio rowleyanus ) grows on the ground, forming a mat by crawling over and under other plants. In the non-wild, though, you’ll find these beauties grown in hanging baskets with their foliage cascading over the edge. “Its modified leaves are small, pea-like spheres—they’re engineered to store water, minimize water consumption, and facilitate plant survival in dry climates,” explains Lisa Root, owner of Root Houseplants . 

These plants bloom only once per year, but typically with a few flowers per plant that give off a spicy, cinnamon-like scent . “Its flowers are round and resemble pom poms; they are white with yellow anthers and red stamens,” Root says.

Queen of the Night

Hendri/getty images

The queen of the night ( Epiphyllum oxypetalum ) lives up to her dramatic name, blooming only once per year on a single evening, says Evan Torchio, founder at Tree Menders . These cactus blooms are quite enchanting with their oversized, fragrant white petals. “They are worth the wait,” Torchio says. “ To keep the plant happy, give it bright, indirect sunlight and water it regularly, letting the soil dry slightly between waterings.”

anamariategzes/getty images

For a tropical flowering succulent option check out the Hoya carnosa compacta , which flowers nearly year-round. “There are several variations with different leaf shapes and color patterns,” says JP Varvarigos, 3rd generation florist and owner of Wellington Florist . He’s particularly fond of a boutique variety called “Hindu Rope” that’s over 20 years old. It produces a beautiful pink flower among the plant’s twisting leaves. 

franck metois/getty images

This popular succulent ( Crassula ovata ) has thick and glossy jade-colored leaves with a tree-like silhouette. It’s a great indoor option, and some people believe that keeping it around helps usher in good luck and prosperity. In the winter, it produces a small, star-shaped flower in either pink or white that contrasts beautifully against the plant’s green leaves.

Old Lady Cactus

VSFP/Getty images

It’s a funny name, but the old lady cactus ( Mammillaria hahniana ) is called such because of its soft, white, fuzzy hairs that grow all over the plant. “After long periods of drought or cool season, you will be rewarded by its magenta multi-petalled flowers, crowning the tip of each mature stem,” Cubian says. He adds that the plant also starts to create a clumped, “eggs in a basket” sort of appearance and that you can re-pot each “egg.”

Widow's-thrill

Elizabeth Fernandez/Getty Images

Another variety of flowering succulent is the Kalanchoe , which comes in about 125 varieties. “The one with the most flowers is the widow's-thrill, or Kalanchoe blossfeldiana plant,” Varvarigos says. “It's also known as flaming Katy, Christmas Kalanchoe , and Madagascar widow's-thrill.” He says the plant produces a lush bouquet of blooms that come in a range of colors, including red, orange, pink, yellow, and white, depending on the species.

Living Stones

kazumi miyamoto/getty images

Living Stones ( Lithops ), which resemble an array of juicy, colorful pebbles—are a wonder even without blooms. Each plant has two thick and fleshy leaves that grow opposite each other and very low to the ground. Come autumn, a delicate, daisy-like flower emerges from the fissure. This plant slowly spreads sideways by producing clusters of nearby pups and can be grown either indoors or outdoors.

Zebra-Striped Lifesaver

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This flowering succulent plant produces spiky conical stems that grow in clumps that stretch up and outward. In the spring through summer, the Huernia zebrina produces almost cartoonish-like flowers. “The rubbery petals present themselves in yellow, streaked with brown to purplish lines, resembling a zebra pattern, with central brown and glossy ring,” explains Cubian. Unlike most succulent species that have a hankering for direct sunlight, this species thrives best in shady spots or inside.

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Field experiments, explained

Editor’s note: This is part of a series called “The Day Tomorrow Began,” which explores the history of breakthroughs at UChicago.  Learn more here.

A field experiment is a research method that uses some controlled elements of traditional lab experiments, but takes place in natural, real-world settings. This type of experiment can help scientists explore questions like: Why do people vote the way they do? Why do schools fail? Why are certain people hired less often or paid less money?

University of Chicago economists were early pioneers in the modern use of field experiments and conducted innovative research that impacts our everyday lives—from policymaking to marketing to farming and agriculture.  

Jump to a section:

What is a field experiment, why do a field experiment, what are examples of field experiments, when did field experiments become popular in modern economics, what are criticisms of field experiments.

Field experiments bridge the highly controlled lab environment and the messy real world. Social scientists have taken inspiration from traditional medical or physical science lab experiments. In a typical drug trial, for instance, participants are randomly assigned into two groups. The control group gets the placebo—a pill that has no effect. The treatment group will receive the new pill. The scientist can then compare the outcomes for each group.

A field experiment works similarly, just in the setting of real life.

It can be difficult to understand why a person chooses to buy one product over another or how effective a policy is when dozens of variables affect the choices we make each day. “That type of thinking, for centuries, caused economists to believe you can't do field experimentation in economics because the market is really messy,” said Prof. John List, a UChicago economist who has used field experiments to study everything from how people use  Uber and  Lyft to  how to close the achievement gap in Chicago-area schools . “There are a lot of things that are simultaneously moving.”

The key to cleaning up the mess is randomization —or assigning participants randomly to either the control group or the treatment group. “The beauty of randomization is that each group has the same amount of bad stuff, or noise or dirt,” List said. “That gets differenced out if you have large enough samples.”

Though lab experiments are still common in the social sciences, field experiments are now often used by psychologists, sociologists and political scientists. They’ve also become an essential tool in the economist’s toolbox.  

Some issues are too big and too complex to study in a lab or on paper—that’s where field experiments come in.

In a laboratory setting, a researcher wants to control as many variables as possible. These experiments are excellent for testing new medications or measuring brain functions, but they aren’t always great for answering complex questions about attitudes or behavior.

Labs are highly artificial with relatively small sample sizes—it’s difficult to know if results will still apply in the real world. Also, people are aware they are being observed in a lab, which can alter their behavior. This phenomenon, sometimes called the Hawthorne effect, can affect results.

Traditional economics often uses theories or existing data to analyze problems. But, when a researcher wants to study if a policy will be effective or not, field experiments are a useful way to look at how results may play out in real life.

In 2019, UChicago economist Michael Kremer (then at Harvard) was awarded the Nobel Prize alongside Abhijit Banerjee and Esther Duflo of MIT for their groundbreaking work using field experiments to help reduce poverty . In the 1990s and 2000s, Kremer conducted several randomized controlled trials in Kenyan schools testing potential interventions to improve student performance. 

In the 1990s, Kremer worked alongside an NGO to figure out if buying students new textbooks made a difference in academic performance. Half the schools got new textbooks; the other half didn’t. The results were unexpected—textbooks had no impact.

“Things we think are common sense, sometimes they turn out to be right, sometimes they turn out to be wrong,” said Kremer on an episode of  the Big Brains podcast. “And things that we thought would have minimal impact or no impact turn out to have a big impact.”

In the early 2000s, Kremer returned to Kenya to study a school-based deworming program. He and a colleague found that providing deworming pills to all students reduced absenteeism by more than 25%. After the study, the program was scaled nationwide by the Kenyan government. From there it was picked up by multiple Indian states—and then by the Indian national government.

“Experiments are a way to get at causal impact, but they’re also much more than that,” Kremer said in  his Nobel Prize lecture . “They give the researcher a richer sense of context, promote broader collaboration and address specific practical problems.”    

Among many other things, field experiments can be used to:

Study bias and discrimination

A 2004 study published by UChicago economists Marianne Bertrand and Sendhil Mullainathan (then at MIT) examined racial discrimination in the labor market. They sent over 5,000 resumes to real job ads in Chicago and Boston. The resumes were exactly the same in all ways but one—the name at the top. Half the resumes bore white-sounding names like Emily Walsh or Greg Baker. The other half sported African American names like Lakisha Washington or Jamal Jones. The study found that applications with white-sounding names were 50% more likely to receive a callback.

Examine voting behavior

Political scientist Harold Gosnell , PhD 1922, pioneered the use of field experiments to examine voting behavior while at UChicago in the 1920s and ‘30s. In his study “Getting out the vote,” Gosnell sorted 6,000 Chicagoans across 12 districts into groups. One group received voter registration info for the 1924 presidential election and the control group did not. Voter registration jumped substantially among those who received the informational notices. Not only did the study prove that get-out-the-vote mailings could have a substantial effect on voter turnout, but also that field experiments were an effective tool in political science.

Test ways to reduce crime and shape public policy

Researchers at UChicago’s  Crime Lab use field experiments to gather data on crime as well as policies and programs meant to reduce it. For example, Crime Lab director and economist Jens Ludwig co-authored a  2015 study on the effectiveness of the school mentoring program  Becoming a Man . Developed by the non-profit Youth Guidance, Becoming a Man focuses on guiding male students between 7th and 12th grade to help boost school engagement and reduce arrests. In two field experiments, the Crime Lab found that while students participated in the program, total arrests were reduced by 28–35%, violent-crime arrests went down by 45–50% and graduation rates increased by 12–19%.

The earliest field experiments took place—literally—in fields. Starting in the 1800s, European farmers began experimenting with fertilizers to see how they affected crop yields. In the 1920s, two statisticians, Jerzy Neyman and Ronald Fisher, were tasked with assisting with these agricultural experiments. They are credited with identifying randomization as a key element of the method—making sure each plot had the same chance of being treated as the next.

The earliest large-scale field experiments in the U.S. took place in the late 1960s to help evaluate various government programs. Typically, these experiments were used to test minor changes to things like electricity pricing or unemployment programs.

Though field experiments were used in some capacity throughout the 20th century, this method didn’t truly gain popularity in economics until the 2000s. Kremer and List were early pioneers and first began experimenting with the method in the 1990s.

In 2004, List co-authored  a seminal paper defining field experiments and arguing for the importance of the method. In 2008,  he and UChicago economist Steven Levitt published another study tracing the history of field experiments and their impact on economics.

In the past few decades, the use of field experiments has exploded. Today, economists often work alongside NGOs or nonprofit organizations to study the efficacy of programs or policies. They also partner with companies to test products and understand how people use services.  

There are several  ethical discussions happening among scholars as field experiments grow in popularity. Chief among them is the issue of informed consent. All studies that involve human test subjects must be approved by an institutional review board (IRB) to ensure that people are protected.

However, participants in field experiments often don’t know they are in an experiment. While an experiment may be given the stamp of approval in the research community, some argue that taking away peoples’ ability to opt out is inherently unethical. Others advocate for stricter review processes as field experiments continue to evolve.

According to List, another major issue in field experiments is the issue of scale . Many experiments only test small groups—say, dozens to hundreds of people. This may mean the results are not applicable to broader situations. For example, if a scientist runs an experiment at one school and finds their method works there, does that mean it will also work for an entire city? Or an entire country?

List believes that in addition to testing option A and option B, researchers need a third option that accounts for the limitations that come with a larger scale. “Option C is what I call critical scale features. I want you to bring in all of the warts, all of the constraints, whether they're regulatory constraints, or constraints by law,” List said. “Option C is like your reality test, or what I call policy-based evidence.”

This problem isn’t unique to field experiments, but List believes tackling the issue of scale is the next major frontier for a new generation of economists.

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Xbox Going Big at gamescom 2024 with Starfield DLC, Stalker 2, WoW, More - IGN Daily Fix

In today's Daily Fix: The biggest video game even in the world is just a few weeks away—yes we're talking about gamescom happening in Germany later this month. Xbox is the only one of the three major console makers attending the show, and they're bringing their A-game. Indiana Jones and the Great Circle, World of Warcraft: The War Within, Starfield's new DLC, S.T.A.L.K.E.R. 2 and more have already been announced for the show. In other news, BioWare's upcoming Dragon Age: The Veilguard still doesn't have a release date, but that could change soon. And finally, if you have Amazon Prime, this month's free games offering is not too bad. Deus Ex: Mankind Divided headlines the list, and was one of the best games of 2016, along with some indie hits and a few Tomb Raiders.

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Strategy Guide

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Three phase fight with 3 bosses. In each phase you fight one boss until they die and the next one joins the fight.

You always fight Neldris first, Thadrion second, and Rionthus last. They each have different abilities.

In P2, Thadrion regularly applies a permanent DoT on players that constantly stacks. Dispelling it makes it jump to a new player and reset stacks. You'll deal with several of them.

All 3 bosses apply the same tank debuff. Tanks need to collide to clear it , which applies a DoT to the raid proportionate to the number of stacks cleared.

You fight Neldris first.

MOVE OUT IF MARKED.

DON'T STAND IN THE

PATH OF THE BOSS.

field experiment wow

Neldris marks a few players and then dashes through them, dealing damage and applying a 15s bleed to them and any players in his trajectory.

DODGE THE FRONTAL CONE.

field experiment wow

Massive frontal cone toward a random player.

MOVE OUT TO

REDUCE DAMAGE.

field experiment wow

Neldris roars and deals damage to the raid; the damage is reduced the farther away players are.

field experiment wow

A ll 3 boss' melee attacks apply a permanent stacking DoT.

Touching another player (usually the other tank) who also has the DoT clears both players and applies a 20s stackable DoT to everyone.

Don't reset less than 20s apart. If you clear at high stacks, prepare some healing CDs.

You fight Thadrion second.

USE DEFENSIVES AND

HOLD DISPELS AS

LATE AS POSSIBLE.

field experiment wow

Regularly, Thadrion applies a permanent DoT on players that constantly stacks. Dispelling it makes it jump to a new player and resets stacks.

Dispelled players drop a circle that explodes a few seconds later.

You'll deal with more DoTs throughout P2. They disappear when Thadrion dies.

DODGE THE SWIRLS.

field experiment wow

Thadrion launches projectiles in the room. Dodge them.

Similar to P1

field experiment wow

Regularly, Thadrion starts a channel that deals damage to the raid.

You fight Rionthus last.

BUMP THE BALLS BEFORE

THEY REACH THE BOSS.

field experiment wow

Regularly, Rionthus spawns a ball that slowly moves toward him. If it reaches him, he gets a 10% health absorb shield. 

Players can bump into the balls to knock them away, which deals some damage to players.

MOVE CIRCLES OUT

OF THE RAID.

field experiment wow

Regularly, Rionthus channels a beam on a few players that deals damage. They are then marked with a circle, slowing them and dealing damage to anyone nearby.

WATCH WHERE THE

BOSS WILL FLY AND DODGE.

field experiment wow

Rionthus goes to the edge of the room and flies in a straight line lengthwise across the room twice, dealing massive damage to any players hit. 

There are 3 possible lanes Rionthus may fly over. He will favor the lane where most players are.

A ll 3 bosses melee attacks apply a permanent stacking DoT.

Touching another player (usually the other tank) who also has the DoT clears both players and applies everyone a 20s stackable DoT .

A general WeakAura pack that provides "icon" style mechanics/debuff as well as short descriptions for each. Pretty standard. We also recommend downloading Causese Sound addon to hear vocal announcements. Feel free to thank the amazing Causese here (sorry, no Twitter that I know of...).

Another must have by Causese if you play or are planning to play tank. It informs you when to taunt and how your co-tank is doing with their mechanics.

Make sure to checkout the Causese Sound addon to also pair it with appropriate sound announcements.

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Field Experiments

Last updated 22 Mar 2021

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Experiments look for the effect that manipulated variables (independent variables) have on measured variables (dependent variables), i.e. causal effects.

Field experiments are conducted in a natural setting (e.g. at a sports event or on public transport), as opposed to the artificial environment created in laboratory experiments. Some variables cannot be controlled due to the unpredictability of these real-life settings (e.g. the public interacting with participants), but an independent variable will still be altered for a dependent variable to be measured against.

Evaluation of field experiments:

- Field experiments generally yield results with higher ecological validity than laboratory experiments, as the natural settings will relate to real life.

- Demand characteristics are less of an issue with field experiments than laboratory experiments (i.e. participants are less likely to adjust their natural behaviour according to their interpretation of the study’s purpose, as they might not know they are in a study).

- Extraneous variables could confound results due to the reduced control experimenters have over them in non-artificial environments, which makes it difficult to find truly causal effects between independent and dependent variables.

- Ethical principles have to be considered, such as the lack of informed consent; if participants are not made aware of their participation in an experiment, privacy must be respected during observations and participants must be debriefed appropriately when observations come to an end.

- Precise replication of the natural environment of field experiments is understandably difficult, so they have poor reliability, unlike laboratory experiments where the exact conditions can be recreated.

- Field experiments are more susceptible to sample bias, as participants are often not randomly allocated to experimental conditions (i.e. participants’ groups are already pre-set rather than randomly assigned).

  • Field experiments

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Types of experiment: overview, our subjects.

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Experiment 12-B

Some believe Experiment 12-B is the result of a covert SI-7 initiative, others consider it the outcome of embyronic tinkering by goblin scientists. No matter the case, this much is certain: given its strength, speed and agility, Experiment 12-B was a success!

Riding Requirements:

  • This mount is available to all eligible characters on your account.
  • Apprentice Riding (ground)
  • Expert Riding (flying)
  • Ultraxion in Dragon Soul.
  • The Black Market Auction House (rarely)

Introduced in:

Travel mode:.

  • Ground (+60% or +100% speed)
  • Flying (+150%, +280% or +310% speed)

Experiment 12-B

Matching Companion Pets:

Twilight Whelpling

Other Mounts Using the Same Model:

Albino Drake

More info on Wowhead:

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Kim Kardashian Fangirls Over Gwyneth Paltrow Wearing SKIMS: ‘Love You and Wow!’

Paltrow sported a dark brown SKIMS bodysuit as she snapped a mirror selfie and shared it to her Instagram Stories

Gabrielle Rockson is a staff writer-reporter for PEOPLE. She joined PEOPLE in 2023 and covers entertainment and human interest stories. She's interviewed David Beckham, Zendaya, Timothée Chalamet and many others. Her previous work can be found in OK! Magazine, MyLondon, GRM Daily, and more.

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Monica Schipper/Getty; Gwyneth Paltrow/Instagram

Kim Kardashian is fangirling over Gwyneth Paltrow !

On Wednesday, July 31, Kardashian, 43, reposted a snap of Paltrow, 51, wearing SKIMS on her Instagram Stories.

“Lovvveeeeee youuuuuu and woww!!!!!,” the SKIMS founder wrote across the photo.

In the picture, Paltrow wore a dark brown bodysuit as she held up her phone and snapped a mirror selfie.

“#wellnesswednesday before a break,” the Goop founder captioned the original photo. “@skims for exercise."

Kim Kardashian/Instagram

Kardashian also reposted a snap of Olympic champions Simone Biles and Jordan Chiles wearing SKIMS Olympic robes after her brand sponsored Team USA at the 2024 Paris Olympics. 

In the photo, the gymnasts posed on what appeared to be a balcony as they flashed peace signs while wearing the white robes.

"nights in the olympic village, Biles, 27, captioned the post.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

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“I’m so honored for SKIMS to continue supporting Team USA and the inspiring athletes participating in the upcoming Olympic and Paralympic Games 2024," Kardashian said in a press release. "Our shared mission of empowering everybody really shines through in the collaboration this year with the addition of our men's styles to reinventing our adaptive intimates."

She added, "The athletes in our campaign look incredible in the collection, and I can’t wait to cheer them on this summer in SKIMS!” 

The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now !

SKIMS previously provided loungewear and undergarments for Team USA at the 2020 Summer Olympics in Tokyo and the 2022 Winter Olympics in Beijing.

In 2023, Kardashian revealed that she created the brand out of a very "vulnerable" place .

"I take it really personally,” she said in her TIME magazine cover story . “It started off of my body and my shapes, and it’s very vulnerable."

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Babble Dabble Do

4 Easy Magnet Experiments That Will Amaze Your Kids

January 30, 2015 by Ana Dziengel 16 Comments

This super simple set up yields 4 easy magnet experiments that kids will absolutely love! And it just so happens these project are a great tie into Valentine’s Day though honestly they are fun any time of year! So what does magnet science have to do with Valentine’s Day? Well….

This project was originally part of the sensory series Playful Hearts: Valentine’s Inspired Play & Learning. For more projects in the series scroll to the end of the post.

Have you ever noticed that some of the common sayings people use to describe love and attraction are based on the scientific phenomenon of magnetism? Here are some examples:  They had a magnetic attraction.  He exudes animal magnetism.  They are polar opposites.  I was drawn to her.  She has a magnetic personality.

It makes sense that love and magnetism are synonymous. Love is that indescribable feeling you get with certain people that makes you feel all warm and gushy. In the case of romantic love perhaps it makes your heart race, your palms sweat and you can’t help but feel its strong force.

Magnets have a similar effect. Magnets are objects that exude a strong force field around them that causes them to attract ferromagnetic materials and other magnets themselves. Strong magnets are drawn immediately together when placed in close proximity. And did I mention that this magnetic field is invisible, just like love? You can’t see it but you can certain feel it, and it’s a fun sensory experience for kids to try and “touch” an invisible force. For our post today we made a simple pyramid structure that will give you the chance to explore the invisible and strong attractive force called magnetism.

This post contains affiliate links to products I recommend to my readers.

Magnet Magic: Easy Magnet Experiments

Tips before starting: .

  • One of the ways we have fine tuned this project over the years is to substitute modeling clay for the loom bands. It’s MUCH easier for kids to put together on their own.
  • We also made our own wands with a pencil and ceramic disc magnet hot glued to the end.
  • Ceramic Donut Magnet
  • 12″ Bamboo Skewers
  • Rectangular Ceramic Magnets
  • Magnetic Wands  OR use a pencil with a ceramic disc magnet hot glued to the end
  • Small rubber bands (loom bands )  OR Substitute modeling clay or play dough!
  • String or yarn

Instructions

  • Step One Cut a piece of string about 8” long and thread through a donut magnet. Tie tightly.
  • Step Two Connect the ends of two skewers by overlapping them and wrapping a loom band around the joint.
  • Step Three Repeat Step Two to connect a third skewer and form a triangle base.
  • Step Four Connect two additional skewers first to each other and then to the base to form one side of a pyramid. Before forming a full pyramid with the last skewer wrap the top connection with the loose end of your string. The goal is to have the donut magnet hang from the center point of the skewer pyramid. You want it to hang about 1 ½” from the base
  • Step Five Add your last skewer to complete the pyramid shape. Wrap the joint tightly with a loom band.

The Modeling Clay Version:

To make the clay version:.

  • Give each child (2) strips of modeling clay. Ask them to tear each strip in half and the roll the halves in a clay sphere. They will need (4) spheres in total.
  • Construct the triangular base with a clay sphere at each joint.
  • Once the base is complete, add a skewer to the top of each sphere and collect at the center point to form a pyramid. Use the last clay sphere to connect the top three skewers.
  • The magnet on a string may be pressed into the top clay sphere to hold in place at the desired height.

The Easy Magnet Experiments

This little DIY pyramid structure can be used to make several different observations about magnets. I loosely divided them into 4 mini experiments you can first watch in this video and then read about below.

Easy Magnet Experiment #1: Follow That Force

Can you move something without even touching it? Magnetic force is very strong when magnets are placed in close proximity to each other. To see just how strong it is try this: Take two rectangular magnets and place them under the center point of the hanging donut magnet. Gently slide the rectangular magnets around and watch as your donut magnet follows the magnetic force. Twists and turn the donut magnet by twisting and turning the rectangular magnets beneath. Seemingly defy gravity by suspending your donut magnet at an angle!

Easy Magnet Experiment #2:   The Indecisive Magnet

Magnets have a north and a south pole. This means that one end of a magnet attracts and the other side repels if placed next to another magnet. This is a fun observation to make with magnets of any kind. To see how this repelling and attracting can drive a magnet crazy try this: Place one ceramic magnet under the center point of each bottom chord of your triangle base. Now gently lift your donut magnet and let it swing. It will bounce back and forth between the three magnets’ fields as it encounters the different polarities. It will look like a wildly indecisive magnet that has no idea where to go! Move the rectangular magnets around to see what happens to the center magnet and how it swings based on its proximity to the different magnetic fields.

Easy Magnet Experiment #3: An Invisible Dance Partner

This is my favorite experiment. Let the donut magnet rest as still as possible at the center of the pyramid. Now take a magnetic wand (or a strong magnet) and begin gently waving it near the donut magnet (don’t get too close or the magnets will stick together). Watch as the donut magnet begins to sway and twirl. You can really make that donut magnet shake it’s groove thing simply by moving your wand nearby! Because our donut magnet is suspended by a string it amplifies the twirling action. And for any doubters who think that the slight breeze generated by waving your hands is causing the magnet to dance, try waving your hand nearby without the wand. The donut stays put.

Easy Magnet Experiment #4: The Jitters

Place two rectangular magnets underneath the donut magnet. Gently pull on the donut magnet to release it from the magnetic field then let it drop and swing over the rectangular magnets. It will quickly be caught right back in the magnetic field and move quickly back and forth in a jitterbug dance.

Leon Theremin .  How many of you know and are fascinated by the musical instrument known as the Theremin? If you don’t know what I am talking about please go watch this video RIGHT NOW  of the most well know Theremin performer Clara Rockmore.

The Theremin is the only musical instrument that is played without physical contact. It was invented in the 1920s by Leon Theremin and is based on the phenomenon that interrupting an electromagnetic field can produce audible frequency changes. Essentially the Theremin has two antennae that broadcast a signal to each other and when you wave your hands between the antennae you interrupt the magnet field between them causing the signal to change. Here is a great little video demonstrating it .

Leon Theremin was a Russian scientist who discovered this phenomenon when working on proximity sensors for the Russian government. He went on to patent this electronic musical instrument and it’s eerie sound can be found in many a sci-fi movie soundtrack from the 1950’s. Though it became associated with campy film soundtracks in the 1950’s it was actually used in some classic films like Spellbound and The Lost Weekend and is most famous in popular music in the song Good Vibrations from the Beach Boys.

Magnets are one of my favorite materials to work with and these easy magnet e xperiments are simple to set up and kids  love to watch them in action! Magnetic attraction is seemingly magical and I haven’t met someone yet who isn’t momentarily mesmerized by it’s power and behavior, just like love.

Ready for more Valentines Inspired sensory fun?

Check out my fellow bloggers posts related to sensory play and discovery for Valentines Day:

The impossibly sweet  Hanging Hearts Creative Threading Activity  from Childhood 101.

An awesomely touchy feely Textured Heart Sensory Bin from Toddler Approved 

A smart Valentine’s Math Station from NutureStore.

Spread Creativity like Wildfire: Pin this!

Meri cherry says

January 30, 2015 at 7:37 am

That video is AWESOME Ana!!!!!Cant wait to share it!

Ana Dziengel says

February 4, 2015 at 4:11 am

Love you mama!

March 9, 2016 at 11:40 am

Love you too! <3

Sonya Shulga says

October 12, 2016 at 7:55 pm

That’s cool i am going to do that for the science fair!

January 30, 2015 at 11:22 am

Ev loves the video!

Jeanette Nyberg says

January 31, 2015 at 6:20 am

Awesome! I love the magnets and love tie-in. And the video is amazing! It brings the whole thing to life and makes me want to run home and set this up. I *think* we have the magnets and skewers, but this is totally worth a trip to the store.

Thank you so much Jeanette!

February 10, 2015 at 2:25 pm

Very cool, Ana

August 10, 2015 at 10:08 am

I would like to do the same magnetic experiment with my little students. But, I failed. Would you mind give me some hints? Or advice me the dimension of the rectangular magnet and donut magnet?

September 8, 2016 at 11:21 am

I work for a hands-on exploring museum in MN, and I was scrambling for an alternative project. The one I had planned on using just wasn’t as fun, easy or amazing as I had hoped. Then I found your post!

We already had all the materials on hand, so I jumped in and had a camp full of kids try this. I was a little anxious, since a lot of the campers were upper elementary aged, and I worried they might be “too old” for a magnet game.

I let each camper choose if they would make the pyramid out skewers (like your example), regular plastic straws (colorful of course!) or giant bubble-tea straws. Then each figured out how to hang their magnet from the peak using string, and how they would like to attach or control the side magnets.

I was so pleased that everyone had fun designing and building this project, and then playing with it! (*Playing with something just created is always the test for how awesome it was!)

Thanks so much for sharing this fabulous idea! I love your blog and suggest it to everyone who asks for ideas. You are the BEST!

September 8, 2016 at 12:09 pm

Oh Sonia I am so happy to hear this!!! Woo hoo! Do you have pics? I’d love to see some of the camper’s work! Thank you so much for the kind words 🙂

October 12, 2016 at 7:58 pm

That’s cool i am doing that for the science fair at my school with my friend Alexa

October 12, 2016 at 7:59 pm

Its so FUN!!!!!!!!

November 26, 2016 at 8:54 pm

I’m surely gonna chose this as my science experiment. It’s really good!

December 9, 2016 at 5:39 am

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