Hamster Power

Researchers take a first step toward harnessing the small energy sources found in cages around the world

Researchers believe they have conducted the first instance of an animal producing current with nano-generators, by harnessing the power of exercising hamsters. Plus — the answer to the question that has weighed on the greatest minds for generations: how many hamsters does it take to power a cell phone?

Also in today’s links: where American ideas come from, where methane in the Arctic is going, and more.