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A Magna Doodle drawing board. Magna Doodle is a magnetic drawing toy, consisting of a drawing board, a magnetic stylus, and a few magnet shapes.Invented in 1974 by Pilot Corporation, [1] over forty million units have been sold to date worldwide, under several brands, product names and variations, including Tyco and Mattel/Fisher Price.
The magnet was made of 18 turns of bare copper wire (insulated wire had not yet been invented). [ 1 ] William Sturgeon ( / ˈ s t ɜːr dʒ ə n / ; 22 May 1783 – 4 December 1850) was an English electrical engineer and inventor who made the first electromagnet and the first practical electric motor .
In 2010: Odyssey Two, it is stated that Soviets view artificial gravity as a luxury, and as such their vessel the Alexi Leonov features very limited artificial gravity. The crew uses magnetic shoes to easily walk around the ship. Magnetic shoes are a running theme of the series and are used by crews of small Pan Am shuttles as well.
"Curious George Meets The Press": In the country, George and the Man are helping to harvest the Renkins' apples, but when Jumpy finds an apple he thinks is "Perfect" George tries to hide it and winds up making apple cider with Mr. Renkins' apple press. Note: The title is somewhat confusing as the episode isn't about George meeting a press ...
The strongest continuous magnetic fields on Earth have been produced by Bitter magnets. The strongest continuous field achieved solely with a resistive magnet is 41.5 tesla as of 22 August 2017 [update] , produced by a Bitter electromagnet at the National High Magnetic Field Laboratory in Tallahassee , Florida .
A magnetorquer or magnetic torquer (also known as a torque rod) is a satellite system for attitude control, detumbling, and stabilization built from electromagnetic coils. The magnetorquer creates a magnetic dipole that interfaces with an ambient magnetic field, usually Earth's , so that the counter-forces produced provide useful torque .
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In 1901, George Jacobs was working as a chemist working in the General Electric factory in Fort Wayne, Indiana, where he met co-worker Ethel Mossman. In 1905, he moved to Cleveland, Ohio to take a position with Sherwin-Williams , and continued to work in his own time on an enamel insulation for magnet wire.