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Forward-looking infrared
Videos
Forward-looking infrared (FLIR) cameras, typically used on military and civilian aircraft, use a thermographic camera that senses infrared radiation.
A Thales Damocles FLIR targeting pod
FLIR imagery from a U.S. Navy helicopter: Alleged drug traffickers are being arrested by Colombian naval forces.
FLIR imagery from a U.S. Navy helicopter: Alleged drug traffickers are being arrested by Colombian naval forces.
A FLIR pod on a French Air Force helicopter
A FLIR pod on a French Air Force helicopter
A FLIR system on a U.S. Air Force helicopter during search and rescue operation
A FLIR system on a U.S. Air Force helicopter during search and rescue operation
Cryogenics
Videos
In physics, cryogenics is the production and behaviour of materials at very low temperatures.
Nitrogen is a liquid under −195.8 °C (77.3 K).
Nitrogen is a liquid under −195.8 °C (77.3 K).
This is a diagram of an infrared space telescope, that needs a cold mirror and instruments. One instrument needs to be even colder, and it has a cryoc
This is a diagram of an infrared space telescope, that needs a cold mirror and instruments. One instrument needs to be even colder, and it has a cryocooler. The instrument is in region 1 and its cryocooler is in region 3 in a warmer region of the spacecraft (see MIRI (Mid-Infrared Instrument) or James Webb Space Telescope).
A medium-sized dewar is being filled with liquid nitrogen by a larger cryogenic storage tank.
A medium-sized dewar is being filled with liquid nitrogen by a larger cryogenic storage tank.
Catalogue image of a cryogenic valve
Catalogue image of a cryogenic valve