Tesla

Nikola Tesla and the Death Ray Craze

Nikola Tesla, the audacious futurist and groundbreaking inventor, once claimed to have invented a death ray that would end all war.
Gun control

Why Doctors Are Prescribing Gun Legislation

Gun legislation is once again becoming a public health concern, according to the AMA and other medical groups.

Can You Hear It? The Cicadas Are Back

After 17 years quietly developing under the soil, 3 species of periodical cicadas emerged this summer. How do these insects coordinate?
wagon

The Strange Tale of 19th-Century Quack Doctors

During the 19th century, quack “doctors” outnumbered legitimate ones three to one. The reasons people are attracted to quackery remain with us today.
Roller coaster in Atlantic City

What Makes Your Roller Coaster Go? Physics!

The physics behind the fun: roller coasters provide so many examples of basic principles that they are a staple of physics lessons. 

The “Keystone Species” Concept That Transformed Ecology

Dr. Robert Paine's "keystone species" concept was a profound discovery that changed the field of ecology forever.

The Delicious Origins of the Domesticated Blueberry

Frederick Coville and Elizabeth White, two strangers, domesticated the blueberry together. They valued beauty and worked to support local communities.
Photograph: Blueberries in dishes.

What Makes Blueberries Superfoods?

Summer is here and with it comes Cyanococcus Vaccinium, otherwise known as the blueberry. These little fruits are ...

How To Live With Your Digital Doppelgängers

Digital Doppelgängers may share your name, but you can still claim your own digital identity.

Where in the Solar System is Vulcan?

A hypothetical Planet Vulcan was the best explanation for strange astrological phenomena—until Einstein, that is.