infra-red contrast
51Infrared spectroscopy — (IR spectroscopy) is the subset of spectroscopy that deals with the infrared region of the electromagnetic spectrum. It covers a range of techniques, the most common being a form of absorption spectroscopy. As with all spectroscopic techniques,… …
52Nuclear winter — For other uses, see Nuclear winter (disambiguation). Nuclear weapons History Warfare Arms race Design Testing …
53Environmental science — is the study of interactions among physical, chemical, and biological components of the environment. Environmental Science provides an integrated, quantitative, and interdisciplinary approach to the study of environmental systems. [… …
54Donovan — For other uses, see Donovan (disambiguation). Donovan Donovan performing in Washington, D.C. in 2007 Background information Birth name Donovan P …
55Active galactic nucleus — An active galactic nucleus (AGN) is a compact region at the centre of a galaxy which has a much higher than normal luminosity over some or all of the electromagnetic spectrum (in the radio, infrared, optical, ultra violet, X ray and/or gamma ray… …
56IBM PCjr — (model 4860) Pictured with Racore Drive II third party add on Manufacturer Teledyne, Lewisburg, Tennessee Release date March 1984 ( …
57Mortar (weapon) — Part of the series on Cannon His …
58Leclerc — Infobox Weapon name= Leclerc caption= Demonstration of a Leclerc tank in Paris, on the 14th of July 2006 origin= France type= Main battle tank is vehicle=yes is UK=yes service= 1992– present used by=See Operators wars= designer= design date=… …
59Semi-active radar homing — Semi active radar homing, or SARH, is a common type of missile guidance system, perhaps the most common type for longer range air to air and surface to air missile systems. The name refers to the fact that the missile itself is only a passive… …
60List of Olympus products — This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. The following is a partial, alphabetically sorted list of products manufactured… …
