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archive: Mar-Apr 2008
Tech-news archive: March-April 2008
Nano switch hints at future chips
(Apr 18, 2008)
Researchers have built the world's smallest transistor – one
atom thick and 10 atoms wide – out of a material that could
one day replace silicon. The transistor, essentially an on/off switch,
has been made using graphene [see image], a two-dimensional material
first discovered only four years ago. Graphene is a single layer of
graphite, which is found in the humble pencil.
Read
more. Source: BBC |
Powerful laser is 'brightest light in the universe'
(Apr 10, 2008)
Physicists have turned on the world's most powerful laser, whose pulses
are more intense than any known light source in the universe. The
incredible temperatures and pressures it generates when it hits a
target will let scientists explore conditions found in exploding stars
and the cores of giant planets.
Read
more. Source: New Scientist |
Matrix-style virtual worlds 'a few years away'
(Apr 3, 2008)
Are supercomputers on the verge of creating Matrix-style simulated
realities? Michael McGuigan at Brookhaven National Laboratory in Upton,
New York, thinks so. He says that virtual worlds realistic enough
to be mistaken for the real thing are just a few years away.
Read
more. Source: New Scientist |
Silicon chips stretch into shape
(Mar 27, 2008)
Normally fragile and brittle silicon chips have been made to bend
and fold, paving the way for a new generation of flexible electronic
devices. The stretchy circuits could be used to build advanced brain
implants, health monitors or smart clothing. The complex devices consist
of concertina-like folds of ultra-thin silicon bonded to sheets of
rubber.
Read
more. Source: BBC |
Chemical brain controls nanobots
(Mar 13, 2008)
A tiny chemical "brain" which could one day act as a remote control
for swarms of nano-machines has been invented. The molecular device
– just two billionths of a metre across – was able to
control eight of the microscopic machines simultaneously in a test.
Writing in Proceedings of the National Academy of Sciences, scientists
say it could also be used to boost the processing power of future
computers.
Read
more. Source: BBC |
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