Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Physicists Try To Turn Light Into Matter
The Breit-Wheeler process was first described in 1934 by Gregory Breit and John A. Wheeler, in the journal Physical Review. If you smashed two photons together, the collision would result in a positron and an electron. You would have created matter out of light.
"This would be a pure demonstration of Einstein's famous equation that relates energy and mass: E=mc2, which tells us how much energy is produced when matter is turned to energy," explained senior researcher and professor of physics Steven Rose.
"What we are doing is the same but backwards: turning photon energy into mass, i.e. m=E/c2."
The experimental set-up, what the team call a photon-photon collider, is a new type of physics experiment, involving two extremely high-power laser beams.
John W. Campbell wrote about a somewhat more extreme idea in his 1930 classic The Black Star Passes; he called it Lux - solid light:
It will be matter, matter made of light—light matter—and let us call it a metal.
Via A photon–photon collider in a vacuum hohlraum and ScienceAlert.
It was in 2014 that researchers from Imperial College London devised their experiment, removing the need for those high-energy particles. And now they're finally running the experiment.
“Either that,” returned Arcot, “or proof of an amazing degree of technological advancement. It's only a guess, of course—but I have an idea where this kind of matter exists in the solar system. I think you have already seen it—in the gaseous state. You remember, of course, that the Kaxorians had great reservoirs for storing light-energy in a bound state in their giant planes. They had bound light, light held by the gravitational attraction for itself, after condensing it in their apparatus, but they had what amounted to a gas—gaseous light.
Scroll down for more stories in the same category. (Story submitted 3/16/2018)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 0 )
Related News Stories - (" Engineering ")
Tiny Flying Robot Weighs Just One Gram
'Aerostat meant anything that hung in the air. This was an easy trick to pull off nowadays.' - Neal Stephenson, 1995.
Some Ringworld Configurations Are Stable
'The Ringworld had no horizon. There was no line where the land curved away from the sky.'
Darpa 'Defiant' Unmanned Autonomous Ship
There was no wheel, and no steersman!' - Miles J. Breuer, 1930.
DNA Printed Book By Isaac Asimov Now Available
'They tied the memory to the bloodline and that was their record!' - Barbara Hambly, 1982.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
Tiny Flying Robot Weighs Just One Gram
'Aerostat meant anything that hung in the air. This was an easy trick to pull off nowadays.'
Some Ringworld Configurations Are Stable
'The Ringworld had no horizon. There was no line where the land curved away from the sky.'
TRANSFORM Dynamic Furniture Concept Becomes What You Need
'An adjustment panel outside the door would cause it to extrude various appurtenances in memory plastic...'
Harvard Metamaterials Change Structure Instantly
'Annealed in any shape for a time, and codified, the structure of that shape is retained down to the molecules.'
SnapBot Robots - You Choose Their Legs And They Choose Their Gaits
It's not really polite to tear the limbs off robots.
Dino From Magical Toys An AI Companion To Children
'...the imaginary companions discovered by needful children.'
Humanoid Robots Building Humanoid Robots
''Pardon me, Struthers,' he broke in suddenly... 'haven't you a section of the factory where only robot labor is employed?''
Darpa 'Defiant' Unmanned Autonomous Ship
'There was no wheel, and no steersman!'
What's The Best Way To Ship And Unpack Humanoid Robots?
'I opened the oblong box, where lay the automatons side by side...'
DNA Printed Book By Isaac Asimov Now Available
'They tied the memory to the bloodline and that was their record!'
AI Computer Chip Designs Passeth Human Understanding
'It seems that at one time computers were designed directly by human beings.'
Space Traffic Management (STM) Needed Now
'...the spot was a lonely one in an uncharted region, far from the normal lanes of space traffic.'
Fine-Tune Your Infinite Book The Way You Want It
'I squatted down beside the roller and tried to make some sense out of the knobs. There were thirty-nine of them...'
SpiRobs Soft Spiral Robotic Arm
'Beware the long, flexible, glittering tentacles...'
Holland Factory 3D Printing 500 Tons Of Steak Per Month
'...I don’t understand technical things — tell me, does it ever feel anything?"
Stratospheric Solar Geoengineering From Harvard
'Pina2bo would have to operate full blast for many years to put as much SO2 into the stratosphere as its namesake had done in a few minutes.'
