Posted in daily on 13 June 2008
via the BBC
Scientists have shown off the blueprint for an “acoustic cloak”, which could make objects impervious to sound waves.
The technology, outlined in the New Journal of Physics, could be used to build sound-proof homes, advanced concert halls or stealth warships.
Scientists have previously demonstrated devices that cloak objects from microwaves, making them “invisible”.
“The mathematics behind [...]
Posted in daily on 10 June 2008
via /.
“All paper is made of cellulose, which at the nanoscale level is quite strong, but paper processing makes large, fragile fibers that break easily. Researchers in Sweden have have come up with a manufacturing process that keeps the fibers small, resulting in ‘nanopaper’ with over 1.6 times the tensile strength of cast iron (214 [...]