high power microwaves
21History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
22Microwave burn — This article is about injury from direct microwave exposure. For other microwave oven related injuries, see Hazard section of Microwave oven. Microwave burns are burn injuries caused by thermal effects of microwave radiation absorbed in a living… …
23Cavity magnetron — Magnetron with section removed (magnet is not shown) …
24Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
25Coaxial cable — RG 59 flexible coaxial cable composed of: A: outer plastic sheath B: woven copper shield C: inner dielectric insulator D: copper core Coaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by …
26Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …
27Level sensor — Level sensors are used to detect liquid level. The liquid to be measured can be inside a container or can be in its natural form (e.g. a river or a lake). The level measurement can be either continuous or point values. Continuous level sensors… …
28Laser — For other uses, see Laser (disambiguation). United States Air Force laser experiment …
29Starwisp — is a hypothetical unmanned interstellar probe design proposed by Robert L. Forward. It is propelled by a microwave sail, similar to a solar sail in concept, but powered by microwaves from a man made source. Description Starwisp is a concept for… …
30Dielectric heating — A microwave oven, which uses dielectric heating to cook food Dielectric heating, also known as electronic heating, RF heating, high frequency heating and diathermy, is the process in which a high frequency alternating electric field, or radio… …
