Can binary terrestrial planets exist?

The possible existence of Earth-like binary planets is being described today at the American Astronomical Society's Division for Planetary Sciences meeting in Tucson, AZ. Two bodies, each of mass similar ...

Dec 03, 2014
4.5 / 5 (37) 19

A bright future for LEDs

A single wafer-level LED chip that produces more than 150 Watts of light output has been made in work form China. This level of output from a single chip makes applications for LEDs in high power lighting ...

Dec 05, 2014
4.9 / 5 (32) 6