Latest By
Category:


Armor
Artificial Intelligence
Biology
Clothing
Communication
Computers
Culture
Data Storage
Displays
Engineering
Entertainment
Food
Input Devices
Lifestyle
Living Space
Manufacturing
Material
Media
Medical
Miscellaneous
Robotics
Security
Space Tech
Spacecraft
Surveillance
Transportation
Travel
Vehicle
Virtual Person
Warfare
Weapon
Work

"I took the Minnesota multiphasic profile test once, and I tested out as paranoid, cyclothymic, neurotic, and schizophrenic. But I also tested out as an incorrigible liar!"
- Philip K. Dick

Diamagnetic Levitation  
  Levitation accomplished using magnetic field's interference with the motion of electrons orbiting the atoms or molecules of a material.  

Diamagnetism has been known since the early 19th century; the first experimental confirmation of diamagnetic levitation was done with bismuth in 1939. The technique also works with living creatures; a living frog was successfully levitated when placed in the bore of a Bitter solenoid with a field strength of about 16 Tesla (the magnetic field strength of the Earth varies from about .3 to .6 gauss at sea level; one Tesla equals 10,000 gauss).

The ship rolled out of the hangar like an air-borne whale, moving slowly, its diamagnetized hull clearing the smooth-packed clay of the field by three inches. The ship came to a halt, pinpointed at the lip of a take-off pit. The diamagnetic field strengthened progressively towards the ship's prow and it began tipping upward. Terens was mercifully unaware of this as the pilot room turned on its universal gimbals to meet the shifting gravity. Majestically, the ship's rear flanges fitted into the appropriate grooves of the pit. It stood upright, pointing to the sky.
From The Currents of Space, by Isaac Asimov.
Published by Unknown in 1962
Additional resources -

Diamagnetism occurs as a result of a magnetic field's interference with the motion of electrons orbiting the atoms or molecules of a material. When matter is placed in a magnetic field, the magnetic force acts upon the moving electrons in the matter, causing the electrons to be deflected. This movement of the electrons interferes with the motion of the magnetic field, so the atoms internally oppose the field. This causes the material to be slightly repelled by the magnetic field.

All materials demonstrate some degree of diamagnetism. Magnetic levitation occurs when the force on such an object is strong enough to balance the weight of the object itself. The technique of immersing an object in a liquid to enhance the diamagnetic effect is called "magneto-Archimedes" levitation, due to the buoyancy provided by the liquid.

Comment/Join this discussion ( 3 ) | RSS/XML | Blog This |

Additional resources:
  More Ideas and Technology from The Currents of Space
  More Ideas and Technology by Isaac Asimov
  Tech news articles related to The Currents of Space
  Tech news articles related to works by Isaac Asimov

Diamagnetic Levitation-related news articles:
  - Scientists Succeed At (Cryogenically Enhanced Magneto-Archimedes) Levitation

Articles related to Space Tech
Space Drones - UK's Effective Space To Launch Rocket Tugs
ELROI Satellite 'License Plate'
Bezos Invites You To New Life In Off-World Colonies
Build Your Own Space Suit For Cheap

Want to Contribute an Item? It's easy:
Get the name of the item, a quote, the book's name and the author's name, and Add it here.

<Previous
Next>

Google
  Web TechNovelgy.com   

 

 

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.

 

 

 

 

More News

LA Subway Scanner, As Seen In 'Total Recall'
'I'm afraid to tell you this Mr. Quaid, but you have suffered a schizoed embolism...'

Sion Electric Car Covered With Solar Panels
'It drew its power from six square yards of sunpower screens on its low curved roof.'

PAL-V Liberty Flying Helicopter Car
'...lifted themselves to skimming flight upon whirling helicopters."

Space Drones - UK's Effective Space To Launch Rocket Tugs
'Twenty rocket tugs towed it from its Earth hangar out into space.'

DIY Autonomous Robot Detects Trash
'The search-bug detached itself and rolled forward.'

Ancient Russian Walking Excavator Would Be Perfect RV
I don't need it to go fast, it just needs to amble along.

ELROI Satellite 'License Plate'
Robert Heinlein was thinking about this in 1941.

When Robots Beg For Their Lives
"Just what do you think you're doing... Dave.'

Do You Still Want A Folding Screen Phone?
'A paper thin polycarbon screen unfurled...'

'Snapchat Dysmorphia' Now A Thing, Say Plastic Surgeons
'The program raced up the screen one scan line at a time, subtly smoothing, deleting and coloring.'

More SF in the News

More Beyond Technovelgy

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.