News tagged with laser beams
Related topics: atoms
MIT researchers discover new way of producing electricity
(PhysOrg.com) -- A team of scientists at MIT have discovered a previously unknown phenomenon that can cause powerful waves of energy to shoot through minuscule wires known as carbon nanotubes. The discovery ...
Mar 07, 2010 |
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New hope for ultimate clean energy: fusion power
(PhysOrg.com) -- Imagine if you could generate electricity using nuclear power that emitted no radioactivity: it would be the answer to the world's dream of finding a clean, sustainable energy source.
Apr 12, 2010 |
4.7 / 5 (58) |
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Tractor beams come to life
Tractor beams, energy rays that can move objects, are a science fiction mainstay. But now they are becoming a reality -- at least for moving very tiny objects.
Sep 08, 2010 |
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Seeing quantum mechanics with the naked eye
(PhysOrg.com) -- A Cambridge team have built a semiconductor chip that converts electrons into a quantum state that emits light but is large enough to see by eye. Because their quantum superfluid is simply ...
Jan 09, 2012 |
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Scientists build world's first anti-laser
More than 50 years after the invention of the laser, scientists at Yale University have built the world's first anti-laser, in which incoming beams of light interfere with one another in such a way as to perfectly ...
Feb 17, 2011 |
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Physicists prove Einstein wrong with observation of instantaneous velocity in Brownian particles
A century after Albert Einstein said we would never be able to observe the instantaneous velocity of tiny particles as they randomly shake and shimmy, so called Brownian motion, physicist Mark Raizen and his ...
May 20, 2010 |
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Regular Light Bulbs Made Super-Efficient with Ultra-Fast Laser
(PhysOrg.com) -- An ultra-powerful laser can turn regular incandescent light bulbs into power-sippers, say optics researchers at the University of Rochester. The process could make a light as bright as a 100-watt ...
May 29, 2009 |
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Success in 'space elevator' competition (Update 3)
(AP) -- A robot powered by a ground-based laser beam climbed a long cable dangling from a helicopter on Wednesday to qualify for prize money in a $2 million competition to test the potential reality of the ...
Space & Earth / Space Exploration
Nov 05, 2009 |
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Glasperlenspiel: Scientists propose new test for gravity
A new experiment proposed* by physicists at the National Institute of Standards and Technology may allow researchers to test the effects of gravity with unprecedented precision at very short distances -- a ...
Sep 01, 2010 |
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Scientists Generate Black Hole Radiation in the Lab
(PhysOrg.com) -- Due to their violent nature and long distance from Earth, black holes and their surroundings are very difficult to study. Currently, the main method to observe a black hole is to use an X-ray ...
Dec 07, 2009 |
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3D-printer with nano-precision
Printing three dimensional objects with incredibly fine details is now possible using "two-photon lithography". With this technology, tiny structures on a nanometer scale can be fabricated. Researchers at ...
Mar 13, 2012 |
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Gravity up close: Looking for extra dimensions by measuring gravity at the microscopic level
Scientists know how gravity works at big distances -- the inter-planetary or inter-stellar range -- but does it work the same way at the inter-atomic range?
Oct 13, 2010 |
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Scientists examine possibility of a phonon laser, or 'phaser'
(PhysOrg.com) -- While the optical laser celebrated its 50th anniversary earlier this year, some scientists have been working on a new type of coherent beam amplifier for sound rather than light. Scientists ...
Sep 07, 2010 |
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Scientists Produce Unprecedented 1 Megajoule Laser Shot, Step Towards Fusion Ignition
US scientists have produced a laser shot with an unprecedented energy level that could be a key step towards nuclear fusion, the US National Nuclear Security Administration said Wednesday.
Jan 28, 2010 |
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Made to order diamonds hold key to stunning laser discoveries
(PhysOrg.com) -- Diamond is best known for being a prized gem and the hardest cutting element available, but now thanks to research being carried out at Macquarie University it is also proving to be a super ...
Apr 22, 2010 |
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