Those chemical handwarmers you stuff in your gloves during ski season usually solve just one problem: frosty digits. But the sodium acetate used to generate that heat is a far better problem solver than you might think; researchers in Bristol, U.K., have created a "hot ice" computer that utilizes the chemical compound to solve mazes and tackle various other computing problems.
A tangy flavorant in junk food keeps concrete bricks and bridges from disintegrating
By Lauren Aaronson
Posted 10.30.2007 at 2:00 am 0 Comments
Catastrophic bridge collapses in Minnesota, China and elsewhere have killed at least 58 people this year, and concrete weakened by water is partly to blame. A new study points to a waterproofing solution that lies close at hand-or, er, mouth: sodium acetate, the ingredient that gives salt-and-vinegar chips their delicious zing.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.