April 2010: How It Works

April 2010: How It Works
April 2010: How It WorksPopular Science

Features

How It Works

Our annual look inside some of the world's most amazing machines and gadgets.

Why does time seem to slow down during a life-threatening situation? Our reporter falls 15 stories to find out. **By Steven Kotler
**

Armpit smellers, snot hunters, poop transplanters... By Jason Daley

Headlines

What's New

How 2.0

FYI