White matter fibres

Can Zapping Your Brain Really Make You Smarter?

Early scientific results on transcranial direct current stimulation (tDCS) show promise, but are they enough to support a multi-billion-dollar industry?
Tofurkey

Vegetarian Thanksgiving Dates Back to the 1900s

Tofu turkey was created in 1990, but some Americans celebrated Thanksgiving with veggie dishes over a century ago.
Diagram representing the divergence of species

An Early Review of On the Origin of Species

"Darwin openly and almost scornfully repudiates the whole doctrine of Final Causes. He finds no indication of design or purpose anywhere..."
A woman wearing a non-existent dress

How Much Would You Pay for a Nonexistent Dress?

Not too long ago, digital-only clothing might have been decried as a scam. But our "extended selves" are increasingly invested in virtual goods.
Two illustrations of the heart

Who Really Discovered How the Heart Works?

For centuries, the voice of the Greek doctor Galen, who held that blood is produced in the liver and filtered through tiny pores in the heart, went unchallenged.
A RSS symbol

What Happened to Tagging?

Tags decentralized and democratized the organization of information. What became of "social tagging?"
A pile of manure for fertilizing crops

A History of Human Waste as Fertilizer

In eighteenth century Japan, human excrement played a vital role in agriculture. Can similar solutions help manage waste today?
A school of fish beside a coral reef

Beware Marine Heatwaves

Marine heatwaves are becoming stronger and more common as the climate warms.
A hand holding a jar of Nutella in front of an illustrated hazelnut plant

Everything You Wanted to Know about Hazelnuts but Were Afraid to Ask

For one thing, there are several species of hazelnuts, including a couple native to North America.
Ducks caged for foie gras

New York City Bans Foie Gras

The practice of eating fatty goose livers dates back to at least 2500 BCE. Is there a humane way to produce it?