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
 |
Laser-Powered Helicopter
This laser-powered helicopter can fly for hours, thanks to its ground-based power supply. Of course, this little model weighs only 22 grams, flying on just a few watts of power.
(Laser-powered helicopter video)
LaserMotive says that ground-based lasers can deliver the required power. At last week's AUVSI Unmanned Systems Conference in Denver, Colorado, the firm focused light from an array of semiconductor-diode near-infrared lasers down to a 7-centimetre beam, which automatically tracked a modified radio-controlled helicopter. The aircraft carried photovoltaic cells optimised for the laser wavelength, which converted about half the laser power reaching them to generate a few watts of electricity – enough to power the rotors of the little copter.
SF fans recall that, in their 1974 novel Mote in God's Eye, Larry Niven and Jerry Pournelle wrote about laser cannon that were powerful enough to provide reliable propulsion to space craft.
The basic idea for the laser cannon/light sail propulsion system belongs to Robert L. Forward, who published a short paper Ground-Based Lasers For Propulsion In Space in 1961.
Read about First Flight of a Laser Powered Airplane and more about the laser-powered helicopter at New Scientist.
Scroll down for more stories in the same category. (Story submitted 9/6/2010)
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 ")
3D-Printed Exoskeleton Learns From Your Hand
'...small electric motors at the principal joints worked the prosthetic framework by means of steel cables...' - Fritz Leiber, 1968
Smartwatch Powered By Slime Mold
'Living protoplasm incorporated into the Ampek F-a2 recording system...' - Philip K. Dick, 1966
Carpentopod Walking Table
'Twoflower's Luggage, which was currently ambling along on its little legs...'
Quaise Uses Beams Of Energy To Dig Geothermal Wells
'The peculiar quality of this light, which gave it its great preeminence over all other penetrating rays...' - Frank Stockton, 1897.
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
Russians Create Robot Tank Platoons
'The remotely-operated robot tank is an old idea...'
3D-Printed Exoskeleton Learns From Your Hand
'...small electric motors at the principal joints worked the prosthetic framework by means of steel cables...'
Smartwatch Powered By Slime Mold
'Living protoplasm incorporated into the Ampek F-a2 recording system...'
Unmanned Boats Attack At Sea
'The autofreighter smashed into the boat...'
Carpentopod Walking Table
'Twoflower's Luggage, which was currently ambling along on its little legs...'
Iron Drone Raider Counter-UAV Operations
'You've got an aggressive machine up in the air now.'
SpaceX Rocket Shuttle Point-To-Point On Earth
'He came to as the ship went into free flight, arching in a high parabola over the plains...'
Quaise Uses Beams Of Energy To Dig Geothermal Wells
'The peculiar quality of this light, which gave it its great preeminence over all other penetrating rays...'
Robots Repair And Modify Themselves
'The overworked leg motor would have to cool down before he could work on it...'
Waymo And Tesla 'Autonomous Cabs' Are Piloted By Remote Drivers
‘Where to, sport?’ the starter at cab relay asked.
Robot Janitors Get To Work
'A few mechanical cleaning devices crept here and there...'
Robots Learn To Install Charged Batteries Into Themselves
This is nothing new for science fiction fans!
Robot Rabbits Entice Pythons
'That little robot rabbit knew what it was talking about...'
LLM 'Cognitive Core' Now Evolving
'Their only check on the growth and development of Vulcan 3 lay in two clues: the amount of rock thrown up to the surface... and the amount of the raw materials and tools and parts which the computer requested.'
Has Elon Musk Given Up On Mars?
'There ain't no such thing as a free lunch.'
Bacteria Turns Plastic Into Pain Relief? That Gives Me An Idea.
'I guess there's nobody round this table who doesn't have a Crosswell [tapeworm] working for him in the small intestine.'
