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?
Should I Kill Spiders in My Home?
An entomologist explains why not to.
Environmental Challenges Ahead for Coffee Beans
The issues aren’t limited to extreme weather events or pest attacks.
Ada Lovelace, Pioneer
Ada Lovelace wrote extensive notes on the world’s first computer. Her innovations foreshadowed those used in twentieth-century PCs.
Can Sustainable Travel in the Amazon Help Reduce Forest Fires?
A rainforest evangelist hopes that Brazil’s 55-million year old jungle can survive 21st century human impact.
Pssst, Crop Circles Were a Hoax
In the late 1970s, mysterious circular patterns started showing up in farm fields.
With Social Media, Everyone’s A Celebrity
Social media has made constant exposure a common experience. To learn how to deal with the attention, maybe we should look to the first celebrities.
The Meaning of Methane on Mars
Curiosity rover's recent report of methane on Mars isn't the first time the gas has been indicated. Does it necessarily mean that Mars harbors life?
A Century After They First Appeared, Electric Boats Are Making a Comeback
In the late 1800s, electric boats were a promising new technology. They are now enjoying a revival.
A Grain of Solar-Made Sea Salt
Artisanal sea salt makers are reviving the ancient method of sustainably harvesting salt.