A better way to keep cool

We all have our preferred temperature. Me, I like it cool. My poor college roommate can attest to that, since I just about froze him out of our room, aided by the fact I was tall enough to easily reach the air conditioning controls and he wasn't. But hey, that was in Arkansas, and in Arkansas in late summer, I needed all the air-conditioning I could get.

Humans, despite having originated in hot parts of the world, have long looked for ways to make buildings more comfortable in hot weather...