Many of Latin America’s leftist ‘revolutions’ are now in crisis. But the left is resurging in some countries. The Conversation / Photo Claudia Daut/Reuters

The Latin American left isn’t dead yet

Progressives are leading in the presidential elections of Argentina, Uruguay and Bolivia, bucking the region's recent rightward trend. But there are lessons in the failures of leftists past.
Forty-seven states let computer science count in place of math or science classes required for high school graduation. Monkey Business Images/Shutterstock.com

Computer science now counts as math credit in most states – is this a good idea?

Most states have changed their rules in recent years to let computer science count as a required high school math or science class. A physics professor explains how that trend could set students back.
Lithium-ion batteries power lots of different kinds of devices. Transport Canada

How do lithium-ion batteries work?

The 2019 Nobel Prize in Chemistry rewarded crucial advances in these small, powerful, easy to charge batteries.
Did ancient Egyptian parents worry their kids might get addicted to this game, called senet? Keith Schengili-Roberts/Wikimedia Commons

Games blamed for moral decline and addiction throughout history

Somewhere between the early Buddhist times and today, worries about game addiction have given way to scientific understanding of the benefits of play, rather than its detriments.
A 1932 photograph showing the minaret of the Great Mosque of al-Nuri, Mosul. Library of Congress Prints and Photographs Division Washington, D.C.

On Yom Kippur, remembering Mosul’s rich and diverse past

As Mosul rebuilds, its history is a reminder that people of many faiths lived in cooperation in the city. In the city was the Tomb of Prophet Jonah, venerated by Jews, Christians and Muslims alike.
Breaking homework assignments down into smaller parts makes it easier to complete. Pressmaster/Shutterstock.com

6 ways to establish a productive homework routine

When it comes to completing homework, getting organized and celebrating small victories along the way is key, an expert on learning strategies says.
Alfred Nobel made his fortune through the invention of dynamite. Paramonov Alexander/Shutterstock.com

Discovery of how cells sense oxygen levels earns Nobel Prize

Oxygen is vital for life, so much so that cells can sense when there isn't enough and adapt almost instantly. So how do they do it? The winners of the 2019 Nobel Prize for Physiology figured it out.

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