Photovoltaic cells that convert heat, not sunlight, to electricity may turn out to be the solution for capturing all the energy we waste through heat.READ»
We have a space junk problem. Fragments from very small (a millimeter) to much bigger (several meters) are whirling around overhead at fantastic speeds, threatening satellites and astronauts. Adding more could actually help.READ»
Oops--looks like someone from smartphone makers HTC leaked its 2009 handset lineup. Included in the details is what appears to be the second Android phone, which may or may not end up being called the G2.Look at the shape of the ...READ»
