News tagged with outer shell

Flexible polymer opals

A synthetic material which mimics the brightest and most vivid colours in nature, and changes colour when twisted or stretched, has been developed by researchers at the University of Cambridge, and could have important ...

May 29, 2013
4.2 / 5 (5) 1 | with audio podcast

National security vs. online privacy

One method for safeguarding online anonymity is Tor, "the onion router", whose name comes from its method of adding and stripping away encryption layer by layer as messages pass from one node to another ...

Nov 07, 2014
5 / 5 (3) 0