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
 |
UM Hall Thruster Breaks Records
A Hall thruster under development at the University of Michigan has broken the records for operating current, power and thrust for a device of its kind.
(Scott Hall makes some final adjustments)
The development of the thruster was led by Alec Gallimore, University of Michigan professor of aerospace engineering and the Robert J. Vlasic Dean of Engineering.Hall thrusters offer exceptionally efficient plasma-based spacecraft propulsion by accelerating small amounts of propellant very quickly using electric and magnetic fields. They can achieve top speeds with a tiny fraction of the fuel required in a chemical rocket.
"Mars missions are just on the horizon, and we already know that Hall thrusters work well in space," Gallimore said. "They can be optimized either for carrying equipment with minimal energy and propellant over the course of a year or so, or for speed—carrying the crew to Mars much more quickly."
The challenge is to make them larger and more powerful. The X3, a Hall thruster designed by researchers at U-M, NASA and the U.S. Air Force, shattered the previous thrust record set by a Hall thruster, coming in at 5.4 newtons of force compared with 3.3 newtons. The improvement in thrust is especially important for crewed mission—it means faster acceleration and shorter travel times. The X3 also more than doubled the operating current record (250 amperes vs. 112 amperes) and ran at a slightly higher power (102 kilowatts vs. 98 kilowatts).
(A side shot of the X3 firing at 50 kilowatts)
As far as I know, The ion drive was first described in science fiction in 1947 by Jack Williamson in a short story published in Astounding Science Fiction called "The Equalizer." In the story, the spacecraft achieves a significant fraction of the speed of light, returning decades later due to time dilation, using an ion thruster.
Star Wars fans also know about ion drives, even if they don't realize it. The old Empire uses T.I.E. Fighters; Darth Vader had a special one for his own use. T.I.E. is an acronym for Twin Ion Engines:
Via University of Michigan press release. This technology has been under development for a while; see my earlier story SMART-1's Ion Drive Not Science Fiction (2004) also seen on Space.com as SMART-1's Ion Drive: From Fiction to Fact.
Scroll down for more stories in the same category. (Story submitted 11/4/2017)
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 - (" Space Tech ")
JAXA Int Ball 2 Coming Right Along As Star Wars Remote
'Hocus-pocus religions and archaic weapons are no substitute for a good blaster at your side.' George Lucas, 1976.
Space Traffic Management (STM) Needed Now
'...the spot was a lonely one in an uncharted region, far from the normal lanes of space traffic.' - Arthur William Bernal (1935)
Denmark Joins The 'Zero Debris Charter' To Clean Up Space
'Then their lasers vaporized the smaller satellites...' Arthur C. Clarke, 1978.
Starship Special Edition For Lunar Shuttle
Love those special edition spaceships.
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
Huawei Pura X Folding Phattie Phone
Why can't we get more innovative phone configurations?
Sleep Pods At Daxing International Airport
'Do not waste your priceless company on the unappreciative folds of a sleep pod...'
Robot Baristas Learn Their Trade Without Paying Royalties
'...so we've promised him a generous pension from the royalties.'
JAXA Int Ball 2 Coming Right Along As Star Wars Remote
'Hocus-pocus religions and archaic weapons are no substitute for a good blaster at your side.'
Robot Bricklayer Or Passer-By Bricklayer?
'Oscar picked up a trowel. 'I'm the tool for the mortar,' the little trowel squeaked cheerfully.'
Robot Gas Station Attendant Pumps Gas For You
'... he waited for the robotrix attendant to finish fueling up his ship.'
Engineer Creates Crazy Motorized Track Hospital Bed
The Roujin Z system provides care to fully bedridden patients - and then some!
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...'
