What Structural Engineers Learned from 9/11

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September 10, 2021

Engineering

What Structural Engineers Learned from 9/11

Members of the profession study such tragic events to try and ensure that something similar won't happen again

By Donald Dusenberry

Medicine

The New Science of Autoimmune Disease

Millions of people are sickened by immune systems that are supposed to defend them. There are new ideas about why this happens and how to stop it.

Reproduction

The Absurd Pregnancy Math behind the Texas 'Six-Week' Abortion Ban

The law the Supreme Court just failed to block is not just a blow to women; it's biologically nonsensical

By Michelle Rodrigues

History

Health Effects of 9/11 Still Plague Responders and Survivors

Those who were exposed to Ground Zero have increased rates of certain cancers and other health problems

By Tara Haelle

Quantum Physics

Talking to My Daughter Can Be Harder Than Learning Quantum Mechanics

Ordinary human dilemmas are tougher to solve than the most difficult problems of physics and mathematics

By John Horgan

Ecology

Wolf Populations Drop as More States Allow Hunting

Repercussions of planned and anticipated wolf hunts and traps could ripple through ecosystems for years to come, scientists say

By Tess Joosse

Behavior

A New Way to Understand--and Possibly Treat--OCD

People with the disorder seem to have a more flexible "sense of self"

By Baland Jalal

Aerospace

Starlink, Internet from Space and the Precarious Future of Broadband in Rural America

President Joe Biden's infrastructure plan includes an unprecedented $65 billion for broadband deployment, but money alone will not fix the U.S.'s Internet problem. This short documentary shows why

By Jacob Templin

Evolution

When Lord Kelvin Nearly Killed Darwin's Theory

The eminent 19th-century physicist argued—wrongly, it turned out—that Earth wasn't old enough to have let natural selection play out

By Mano Singham

Extraterrestrial Life

To Look or Not to Look? That Is the Question

The search for technological relics of extraterrestrial civilizations will inspire the public and attract talent to the field of astronomy

By Avi Loeb

Natural Disasters

Hurricane Ida May Spark Mass Migration

Like Katrina before it, the storm may make living conditions untenable in hard-hit areas

By Daniel Cusick,E&E News

Creativity

To Solve the Environmental Crisis, We Must Foster the Power to Imagine

Our educational system is designed to generate productive workers, not creative thinkers and doers

By Peter Sutoris
FROM THE STORE

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BRING SCIENCE HOME
Generate Electricity with a Lemon Battery

Did you know you can make a battery out of a piece of fruit? You'll be charged up on science when you feel the success of your homemade electricity!  Credit: George Retseck

Can you imagine how your life would change if batteries did not exist? If it were not for this handy way to store electrical energy, we would not be able to have all of our portable electronic devices, such as phones, tablets and laptop computers. So many other items—from remote-control cars to flashlights to hearing aids—would also need to be plugged into a wall outlet in order to function.

In 1800 Alessandro Volta invented the first battery, and scientists have been hard at work ever since improving previous designs. With all this work put into batteries and all the frustration you might have had coping with dead ones, it might surprise you that you can easily make one out of household materials. Try this activity and it might just charge your imagination!

Try This Experiment
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