“If you can’t be better than your competition,” Vogue editor Anna Wintour once said, “just dress better.” Indeed, new research suggests that women don’t just dress to be fashionable, or to outdo one another when it comes to enticing men. They also dress for other women. But Wintour’s quote misses some of the nuances that...
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There’s a Complex History of Skin Lighteners in Africa and Beyond
Somali-American activists recently scored a victory against Amazon and against colourism, which is prejudice based on preference for people with lighter skin tones. Members of the non-profit The Beautywell Project teamed up with the Sierra Club to convince the online retail giant to stop selling skin lightening products that contain mercury. After more than a...
ACA Helped Make Health Insurance Access More Equal, but Racial and Ethnic Gaps Remain
As the Affordable Care Act turns 10 years old, a new study shows it has narrowed racial and ethnic gaps in access to health insurance and health care – but definitely not eliminated them. Just before the ACA’s insurance programs took effect, nearly 25% of African-American adults under 65 and 40% of Hispanic adults in...
To Predict an Epidemic, Evolution Can’t Be Ignored
When scientists try to predict the spread of something across populations–anything from a coronavirus to misinformation–they use complex mathematical models to do so. Typically, they’ll study the first few steps in which the subject spreads, and use that rate to project how far and wide the spread will go. But what happens if a pathogen...
Why Is an Empty Shampoo Bottle So Easy to Knock Over?
It becomes annoyingly easy to knock over a shampoo bottle when it’s nearly empty. This is an easily observed and curiosity-provoking phenomenon that, according to Lehigh University physics professor Jerome Licini, yields insights into center-of-mass and impacts. “The physics of that is pretty interesting and easy to understand,” says Licini who, along with first-year physics major...
Speak Math, Not Code
Have you ever followed a recipe to bake some bread? If you have, congratulations; you have executed an algorithm. The algorithms that follow us around the internet to suggest items we might like, and those that control what shows up in our Facebook feeds may seem mysterious and uncanny at times. Yet, an algorithm is...
Exposure to ‘Fake News’ During the 2016 U.S. Election Has Been Overstated
Since the 2016 U.S. presidential election, debates have raged about the reach of so-called “fake news” websites and the role they played during the campaign. A study published in Nature Human Behaviour finds that the reach of these untrustworthy websites has been overstated. To assess the audience for “fake news,” researchers at Dartmouth, Princeton and the University...
Study Shows Rising Age of First Drug Use in Teens, Young Adults
The average age at which teens and young adults start using drugs has been rising, according to a study published today in JAMA Pediatrics. The study examined changes in the average age of first drug use for 18 different drugs–including alcohol and tobacco products–between 2004 and 2017 and found that average ages had increased for the majority of...
The ‘Monday Effect’ Is Real — and It’s Impacting Your Amazon Package Delivery
The “Monday Effect” is real – and it’s impacting your Amazon package delivery. So says researcher Oliver Yao, a professor of decision and technology analytics in Lehigh University’s College of Business. He’s found that the “Monday Effect” – that letdown of returning to work after a weekend, which is documented to impact finance, productivity and psychology...
On Eve of Super Tuesday, Study Sheds Light on How People Make Choices
On Super Tuesday, Democratic voters from Colorado and across the United States will face a serious decision: Sanders or Warren? Biden, Klobuchar or Bloomberg? Then, afterward, what kind of wine to drink. Now, a new study taps into mathematics to probe how people make those kinds of fraught choices–in particular, how hypothetical, and completely rational,...