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...proposed as a working fluid for a [[heat pipe]] type of cooling device for spacecraft heat rejection systems or radiation panels.<ref>{{cite web|accessdate=2009- ...ww.daviddarling.info/encyclopedia/E/electricprop.html|title=Electric space propulsion}}</ref>

...al insulation]] composed of multiple layers of thin sheets often used on [[spacecraft]]. It is mainly intended to reduce heat loss by [[thermal radiation]]. In ...nd Sons|date=2003|edition=3|pages=378–379|chapter=11. Thermal Control of Spacecraft|isbn=9780470851029}}</ref> For compactness, the layers are spaced as close

...JPL's Aerogel World's Lightest Solid| work = News Article| publisher = Jet Propulsion Laboratory| date = 2002-05-07| url =http://stardust.jpl.nasa.gov/news/news9 ...e:Stardust Dust Collector with aerogel.jpg|right|thumbnail|The [[Stardust (spacecraft)|Stardust]] dust collector with aerogel blocks. (NASA)]]

...mechanical engineering. Silk-screen printing, filtration, plasma screens, propulsion technology, lifting/conveying equipment, sound-proofing elements, melting p ...are used in the construction of automobiles, railways, ships, aircraft and spacecraft. Examples are Truck covers (PVC coated PES fabrics), car trunck coverings (

===Spacecraft uses=== ...a valid command is received. The spacecraft may also enter a [[Safe mode (spacecraft)|safe mode]] to protect itself while waiting for further commands.

...]]<ref name="ball" /> and as the [[propellant]] for [[ion thruster]]s in [[spacecraft]].<ref name="saccoccia" /> ...ng|left|thumb|A prototype of a xenon ion engine being tested at NASA's Jet Propulsion Laboratory.|alt=A metal cylinder with electrodes attached to its side. Blue