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Topic: Electromagnetic catapult

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	How Things Work: Electromagnetic Catapults
		A key instrument in the transition is the 1:12-scale model of an electromagnetic catapult, bolted to the concrete floor inside the lab.
		The launch control system for electromagnetic catapults, on the other hand, will know what speed an aircraft should have at any point during the launch sequence, and can make adjustments during the process to ensure that an aircraft will be within 3 mph of the desired takeoff speed.
		Shipboard electromagnetic catapults will be based on larger linear induction motors, made up of three main parts: two 300-foot-long stationary beams, or stators, spaced a couple of inches apart, and a 20-foot-long carriage, or shuttle, that is sandwiched between the two beams and can slide back and forth along their lengths.
	www.airspacemag.com /issues/2007/december-january/how_things_work.htm (1003 words)

	Launsby Consulting-Design of Experiments and Six Sigma training tools
		Because of the complexity and inherent non-linearity of this device, it serves as an excellent challenge for those who wish to go beyond the relative simplicity of the catapult.
		Electromagnets are fundamental to the operation of a great number of machines.
		They are also used to produce sound in bells, buzzers, loudspeakers, and telephones, and to deflect electron beams in television cameras.
	www.launsby.com /Tools.asp (447 words)

	Video: Electromagnetic Catapult Test \| AirSpaceMag.com (Site not responding. Last check: 2007-10-07)
		Engineers test a prototype of an electromagnetic catapult at the U.S. Naval Air Warfare Center in Lakehurst, New Jersey.
		Powered by electromagnetic energy, the prototype can accelerate test articles (massive metal frames on wheels) to 165 mph in three-quarters of a second on a track just 100 feet long.
		Electromagnetic catapults will eventually replace the Navy’s current steam-powered aircraft launchers.
	www.airspacemag.com /multimedia/video/emals.php (60 words)

	ESP Researchers
		As long as the subject was screened electromagnetically from the hypnotist, none of the man's telepathic suggestions were followed.
		He placed the subjects within chambers that were heavily sealed from all forms of electromagnetic radiation.
		Even though it has been proven that electromagnetic radiation can affect the central nervous system, the electromagnetic waves generated by the electric currents that are constantly surrounding modern men and women are of a much higher intensity than any kind of electromagnetic radiation the brain could muster.
	www.unexplainedstuff.com /Mysteries-of-the-Mind/ESP-Researchers.html (12866 words)

	Hobby Engineering: Learning Magnetics Section
		Build a doorbell, telegraph system and even a catapult all using a true electromagnet.
		This kit includes: 7" x 11" viewing case containing special liquid with iron filings, ceramic horseshoe and bar magnets, block magnet, six assorted ceramic magnets, bonus neodymium magnet, and an activity booklet.
		This kit has is everything a child needs to build a simple electromagnet and learn how it works.
	www.hobbyengineering.com /SectionLM.html (635 words)

	Spacecraft propulsion - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-07)
		Rather than relying on high temperature and fluid dynamics to accelerate the reaction mass to high speeds, there are a variety of methods that use electrostatic or electromagnetic forces to accelerate the reaction mass directly.
		Usually the reaction mass is a stream of ions.
		These cannot be the only system for controlling satellite orientation, as the angular momentum built up due to torques from external forces such as solar, magnetic or tidal forces eventually needs to be "bled off" using a secondary system.
	www.knowledgehunter.info /wiki/Spacecraft_propulsion (3574 words)

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