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Measure the speed of light using Milky Way Stars®
Nothing travels faster than light - it only takes 8 minutes for it to reach the Earth from the nearest star, the Sun, which is 150 million kilometres away. Now anyone can measure this speed - with chocolate stars and a microwave oven! The experiment is described on a new Institute of Physics web resource for teachers about fun physics... view more... (2003-01-27)
Warp drive a no go
Sci-fi experts know that many seemingly impossible technologies materialise years later, but unfortunately this may not to be the case for warp-drive - travelling through space faster than the speed of light. The favourite science fiction theory of space contracting in front of spacecraft, and expanding behind it to form warp-drive is under threat... view more... (2002-03-05)
LSU professor resolves Einstein's twin paradox
Subhash Kak, Delaune Distinguished Professor of Electrical and Computer Engineering at LSU, recently resolved the twin paradox, known as one of the most enduring puzzles of modern-day physics. view more (2007-02-15)
Astronomers put quasars in their place
A team of UK astronomers, led by postgraduate student Ed Hawkins, has made a decisive step toward resolving an argument that has rumbled on in the astronomical community for decades. The scientists from the University of Nottingham have been investigating the properties of quasars and nearby galaxies. As part of this study, they have overturned... view more... (2002-10-03)
Scientists break light modulation speed record -- twice
Researchers have constructed a light-emitting transistor that has set a new record with a signal-processing modulation speed of 4.3 gigahertz, breaking the previous record of 1.7 gigahertz held by a light-emitting diode. view more (2009-06-16)
Light at the speed of a bicycle and much more
The speed of light, 300 million metres per second, was long thought an immutable constant and has defined our understanding of matter and energy but recent research in the area of optics and photonics is proving that we can manipulate light to some ingenious and hugely lucrative ends. view more (2009-09-09)
Using invisibility to increase visibility
Research into the development of invisibility devices has spurred two physicists' thought on the behaviour of light to overcome the seemingly intractable problem of optical singularities which could soon lead to the manufacturing of a perfect cat's eye. view more (2008-12-01)
Researchers generate high-speed pulses of laser light on silicon, speeding data transmission
In the Sept. 3 issue of Optical Society of America's Optics Express, published online today, researchers announce that they have built the world's first "mode-locked silicon evanescent laser." view more (2007-08-22)
Exploding Bubbles Detected by Laser Light
A revolutionary way of detecting the potentially dangerous gas bubbles in bore-holes that can lead to large explosions, is reported today in the Institute of Physics journal, Measurement Science and Technology. The new technique, developed by researchers at the University of Reading, could save the oil exploration industry millions of pounds by... view more... (2000-05-30)
High visibility speed cameras may increase road deaths
Government plans to increase the visibility of speed cameras and ban dummy warning signs on roads where there are no cameras may increase deaths and injuries on the road, according to a letter in this week’s BMJ. Speed cameras will now be painted yellow and must be visible from a distance of up to 100m. Police forces will also be forbidden... view more... (2002-05-07)
Research Paper Illuminates How Light Pushes Atoms
A research paper published in the 18 August edition of the journal Physical Review Letters reveals a new effect in the fundamental way that laser light interacts with atoms. view more (2006-08-21)
Light's Most Exotic Trick Yet: So Fast it Goes ... Backwards?
In the past few years, scientists have found ways to make light go both faster and slower than its usual speed limit, but now researchers at the University of Rochester have published a paper today in Science on how they've gone one step further: pushing light into reverse. view more (2006-05-12)
Astronomers discover stars in early galaxies had a need for speed
A team of astronomers has measured the motions of stars in a very distant galaxy for the first time and discovered they are whizzing around at astonishingly high speeds-about one million miles per hour, or twice the speed at which the Sun circles our own Milky Way galaxy. view more (2009-08-07)
A tiny, tunable well of light, and a string theorist's toolbox
Photonics, the science of using photons to carry information, promises to continue improving a wide variety of technologies, from computing to high-speed communication. view more (2009-09-21)
Researchers at UC-Santa Barbara have built the world's first mode-locked silicon evanescent laser
Researchers at UC Santa Barbara have announced they have built the world's first mode-locked silicon evanescent laser, a significant step toward combining lasers and other key optical components with the existing electronic capabilities in silicon. view more (2007-08-22)
Reversing and accelerating the speed of light
Physicist Costas Soukoulis and his research group at the U.S. Department of Energy's Ames Laboratory on the Iowa State University campus are having the time of their lives making light travel backwards at negative speeds that appear faster than the speed of light. view more (2006-07-24)
Junk DNA may prove invaluable in quest for gene therapies
Scientists have identified how a protein enables sections of so-called junk DNA to be cut and pasted within genetic code - a finding which could speed development of gene therapies. view more (2009-09-22)
Lasers, Tomatoes and Blood
The monitoring of blood flow in the skin is an important diagnostic tool in many areas of medicine. These include the diagnosis of diabetes and of various dermatological conditions, the assessment of burn and other wound damage, and the response of the vascular system to smoking and other drugs. view more (1998-09-01)
Code for unbreakable quantum encryption generated at record speed over fiber
Raw code for 'unbreakable' encryption, based on the principles of quantum physics, has been generated at record speed over optical fiber at the Commerce Department's National Institute of Standards and Technology (NIST). view more (2006-04-19)
More economical and easier to install wind generator: the wind reservoir
Two Basque companies, Enerlim and NECESA, have developed a new wind generator, a wind reservoir to make use of wind energy. This wind reservoir is much lighter than ordinary three-arm wind generators; hence, it is more economical and easier to install. On the other side, the machine is completely modular, as columns, pulleys and plates can be... view more... (2002-03-25)
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