Let’s start with the simple case: performing an action only when the switch goes active. We’ll assume the switch starts in ...

We collaborate with the world's leading lawyers to deliver news tailored for you. Sign Up for any (or all) of our 25+ Newsletters. Some states have laws and ethical rules regarding solicitation and ...

They can’t guarantee future health, but they can tell you the trajectory you’re on. By Dana G. Smith Take a minute to consider the last decade of your life. What type of physical shape do you hope to ...

Seeing plastic trash while hiking inspired a Rutgers chemist to rethink why synthetic plastics last forever while natural polymers don’t. By mimicking tiny structural features used in DNA and proteins ...

The most important thing to know about Fresnel lenses, before casually attempting to drop them into conversation, has to do with phonetics: "Fresnel" is pronounced "Fruh-NEL." If the silent "S" makes ...

“These little lights put out a surprising amount of light for their size.” Right now, you can get a pair of Qunler 3-Mode Outdoor Solar Lights for just $8, making them some of the most affordable ...

SAN ANTONIO – It’s the first weekend after Thanksgiving, and putting up Christmas lights or your tree may be on your to-do list. From small displays to Griswold-worthy exhibits, safety should be a ...

Get ready for around of holiday auroras tonight and tomorrow Steven Garcia/NurPhoto/Shutterstock The northern lights may appear on Wednesday and Thursday night, with ...

A handpicked article read aloud from the latest issue of The Economist. Short days and fading sun bring more than just cold weather. Bright light therapy may offer a surprisingly simple way to ease ...

Being in darkness impacts everything, whether it's an unexpected power outage, a car breaking down at night, or an outdoor walk that goes on longer than planned. Having a source of light with you at a ...