Digital Nature Group
We present a method of rendering aerial and volumetric graphics using
femtosecond lasers. A high-intensity laser excites a physical matter to
emit light at an arbitrary 3D position. Popular applications can then be
explored especially since plasma induced by a femtosecond laser is
safer than that generated by a nanosecond laser. There are two methods
of rendering graphics with a femtosecond laser in air: Producing
holograms using spatial light modulation technology, and scanning of a
laser beam by a galvano mirror. The holograms and workspace of the
system proposed here occupy a volume of up to 1 cm^3; however, this size
is scalable depending on the optical devices and their setup. This
paper provides details of the principles, system setup, and experimental
evaluation, and discussions on scalability, design space, and
applications of this system.
Posts tonen met het label engineering. Alle posts tonen
Posts tonen met het label engineering. Alle posts tonen
18-08-2015
13-08-2015
Will Humans Ever Live Under the Sea?
Motherboard
A wise crab named Sebastian once dispensed some sage advice about the virtues of ocean living. “Up on the shore they work all day, out in the Sun they slave away,” he pointed out, “while we devotin’ full time to floatin’ under the sea.”
This sales pitch for the undersea lifestyle is undeniably attractive, and it will probably be stuck in your head all day now. It is also part of a much larger, cross-cultural obsession that humans have with underwater civilizations, which dates at least as far back as ancient Greece.
Much like outer space, the isolation and foreign nature of subocean habitats lends itself naturally to grand themes of humanity’s place in the natural world, and our drive to settle exotic and unexplored frontiers.
A wise crab named Sebastian once dispensed some sage advice about the virtues of ocean living. “Up on the shore they work all day, out in the Sun they slave away,” he pointed out, “while we devotin’ full time to floatin’ under the sea.”
This sales pitch for the undersea lifestyle is undeniably attractive, and it will probably be stuck in your head all day now. It is also part of a much larger, cross-cultural obsession that humans have with underwater civilizations, which dates at least as far back as ancient Greece.
Much like outer space, the isolation and foreign nature of subocean habitats lends itself naturally to grand themes of humanity’s place in the natural world, and our drive to settle exotic and unexplored frontiers.
27-07-2015
Planetary Resources takes a giant step toward space mining
interesting engineering
Forty six years ago, Neil Armstrong took that one small step for a man; here in 2015, that journey has taken some epic strides. The New Horizons mission is gathering unprecedented data from Pluto and other Kuiper Belt Objects – And as if that could be topped – Planetary Resources takes a giant step toward space mining.
Forty six years ago, Neil Armstrong took that one small step for a man; here in 2015, that journey has taken some epic strides. The New Horizons mission is gathering unprecedented data from Pluto and other Kuiper Belt Objects – And as if that could be topped – Planetary Resources takes a giant step toward space mining.
Abonneren op:
Posts (Atom)