Color-changing roof tiles absorb heat in winter, reflect it in summer

#Technology

Sat, Oct 24th, 2009 06:36 by capnasty NEWS

U.S. Secretary of Energy Steven Chu says that turning all the world's roofs white would eliminate as much greenhouse gas emissions in 20 years as the whole world produces in a year.

  871

 

You may also be interested in:

The iPad is Great, But...
The Meanest Drill
Wolfram|Alpha
Google's GrandCentral Is NOT The Hottest Mobile App Ever
Festo’s BionicOpter: Dragonfly-Inspired Remote-Controlled Copter