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
 |
Untethered Drone Gets Wireless Power
Wireless power is the only thing keeping this drone up in the air, thanks to the efforts of Imperial College boffins.
(Imperial College drone, flying without a battery or tether)
The researchers also built a separate transmitting platform that uses a circuit board, power source and copper coil of its own to produce a magnetic field. When placed near that platform, the drone's coil acts as a receiving antenna for that magnetic field, inducing an alternating electrical current. The quadcopter's rejigged electronics then convert that alternating current to direct current, which is used to power its flight.Known as inductive coupling, the technique has been around since the time of Nicola Tesla. According to Imperial College, however, this is the first time that it has been used to power a flying vehicle. While it currently only works if the drone is within 10 cm (3.9 in) of the transmitter, it is hoped that the range can be greatly increased.
The first use of radiant power, or the wireless transmission of power, was arranged by the matchless inventor Nikola Tesla. The largest Tesla Coil ever built (the 'Magnifying Transmitter') could generate up to 300,000 watts of power, and produce a bolt of lightning 130 feet long. Tesla actually managed to successfully transmit about 30 to 50 thousand watts of power without wires using the coil.
However, it was left to Robert Heinlein writing in his classic 1942 novella Waldo to really set imagination free and imagine what you could do if you didn't need to carry some sort of stored power in your flying vehicle.
"...We'll use my 'broomstick'".Grimes let his eyes run over his friend's fusiformed little speedster. Its body was as nearly invisible as the plastic industry could achieve. A surface layer, two molecules thick, gave it a refractive index sensibly identical with that of air. When perfectly clean it was very difficult to see.
At the moment it had picked up enough casual dust and water vapour to be faintly seen - a ghost of a soap bubble of a ship.
Running down the middle, clearly visible through the walls, was the only metal part of the ship - the shaft, or, more properly, the axis core, and the spreading sheaf of deKalb receptors at its terminus. The appearance was enough like a giant witch's broom to justify the nickname. Since the saddles, of transparent plastic, were mounted tandem oven the shaft so that the metal rod passed between the legs of the pilot and passengers, the nickname was doubly apt.
(Read more about Heinlein's broomstick speeder)
Via NewAtlas.
Scroll down for more stories in the same category. (Story submitted 10/15/2016)
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 ")
Hybrid Wind Solar Devices
'...the combined Wind-Suncatcher, like a spray of tulips mounted fanwise.' - Simpson Stokes, 1937.
BeamBike Solar Power Canopy For Electric Bikes
'The slender stalks of a sunshade-photocell collector...' - David Brin, 1990.
REALLY Remote Control Excavators
'It takes over a second for the signal to get to the Moon...' - Pournelle and Niven, 1981
Your Solar Electric Paint Is Ready, Larry Niven
'...you spray it on.' - Larry Niven, 1995
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
Mechazilla Arms Catch A Falling Starship, But Check Out SF Landing-ARMS
'...the rocket’s landing-arms automatically unfolded.'
A System To Defeat AI Face Recognition
'...points and patches of light... sliding all over their faces in a programmed manner that had been designed to foil facial recognition systems.'
Robot Hand Separate From Robot
'The crawling, exploring object was V-Stephen's surgeon-hand...'
Hybrid Wind Solar Devices
'...the combined Wind-Suncatcher, like a spray of tulips mounted fanwise.'
Is Optimus Autonomous Or Teleoperated?
'I went to the control room where the three other men were manipulating their mechanical men.'
Robot Masseuse Rubs People The Right Way
'The automatic massager began to fumble gently...'
Solar-Powered Space Trains On The Moon
'The low-slung monorail car, straddling its single track, bored through the shadows on a slowly rising course.'
Drone Deliveries Instead Of Waiters In Restaurants?
'It was a smooth ovoid floating a few inches from the floor...'
Optimus Robot Can Charge Itself
'... he thrust in his charging arm to replenish his store of energy.'
Skip Movewear Arc'teryx AI Pants
'...the terrible Jovian gravity that made each movement an effort.'
'Robovan' Name Already Taken - Elon, Try These
There are alternative names that are probably in the public domain by now.
How Old Are Tesla Designs?
You be the judge.
Is Your Autonomous Tractor Safe?
'The field-minder finished turning the top-soil of a two-thousand-acre field.'
Smart TVs Are Listening!
'You had to live -- did live, from habit that became instinct -- in the assumption that every sound you made was overheard...'
Police Drones In China Would Like To Have A Word With You
''OVERRIDE,' the City Fathers said suddenly, without being asked anything at all.'
Oh Great (Part 2), Fence-Climbing Robots
Please, no stingers.
