Archive: 01/31/2012

Ultra-fast photodetector and terahertz generator

Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, ...

Jan 31, 2012
4.9 / 5 (10) 0 | with audio podcast

Google defends privacy plan to US lawmakers

Google, facing pressure from US lawmakers over a new privacy policy, said Tuesday it remains committed to protecting consumer data as it creates a "seamless and easy" Web experience.

Jan 31, 2012
not rated yet 0

Hackers attack large Brazilian bank

(AP) -- A group of Internet hackers said Tuesday it took down the website of Brazil's second largest private sector bank, one day after it did the same with the country's largest private bank.

Jan 31, 2012
not rated yet 0

Perfect nanotubes shine brightest

A painstaking study by Rice University has brought a wealth of new information about single-walled carbon nanotubes through analysis of their fluorescence.

Jan 31, 2012
4.6 / 5 (5) 0 | with audio podcast