A young boy looking bored at his desk in a classroom

Is It Time to Reexamine Grading?

There’s compelling evidence for stronger student work and more meaningful instruction when grades in K-12 education are eliminated or made unrecognizable.
Laurette Luez

Hollywood Cast Laurette Luez as a One-Size-Fits-All “Exotic”

Like many actresses of her day, Laurette Luez was expected to be a beautiful siren in skimpy clothing who could be from almost anywhere—just not here.
CamelBak brand water bottles hang on display at an outdoor supply store

How Safe Is BPA-Free Plastic?

With BPA gone from many plastic products, researchers are concerned about other environmental chemicals, which might cause reproductive harm.
A still from The Lodger, 1927

Hitchcock’s Transition from London to Hollywood

In England, Alfred Hitchcock cultivated a comedic sensibility that shines through in his Hollywood thrillers.
Cixin Liu

“To Reach the Pure Realm of the Imaginary:” A Conversation with Cixin Liu

The science fiction author Cixin Liu is best known for his mind-bending trilogy The Three Body Problem.
Mouse embryo

Get Ready For Human-Animal Hybrids

New progress in stem-cell research raises some thorny ethical questions.
A Polynesian rat

Down the Research Rat Hole

While writing her forthcoming book about Polynesia, the author discovered the work of Teuira Henry, a scholar and folklorist who studied ancient Tahiti.
Computational fluid dynamics image of an experimental unmanned hypersonic aircraft

The Alarming Possibilities of Hypersonic Flight

Hypersonic aircraft can fly at least five times the speed of sound. They would make for terrifying weapons -- if they are even possible.

Better Living Through Nudity

In England in the 1920s and ‘30s, nudism was ideological and utopian. Then the Nazis coopted the concept for their eugenicist Nacktkultur movement.