Archive: 04/19/2011

US cracks down on acai berry sellers

US regulators on Tuesday announced a crackdown on websites that sell acai berry weight loss products using fake endorsements from news sites such as CNN, Fox News and USA Today.

Apr 19, 2011
5 / 5 (2) 1

LED efficiency puzzle solved by theorists

Researchers at the University of California, Santa Barbara, say they've figured out the cause of a problem that's made light-emitting diodes (LEDs) impractical for general lighting purposes. Their work will help engineers ...

Apr 19, 2011
4.6 / 5 (22) 16 | with audio podcast