Also,the inventors say the light-colored material better reflects sunlight, so buildings would cost less to cool.

VOA: special.2009.12.01

You are up high, so even in the summer the air usually is cool.

VOA: special.2009.07.20

"It is a place where kids can build their own social community online and they can really engage in some fun and cool scientific discovery and really allow them to turn their home into a lab if they choose to do so."

VOA: special.2010.12.28

"There is no pressure. I have gone through pressure up to this time, so I need a cool head.

VOA: standard.2009.10.15