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Sodium azide is an inorganic compound with the formula NaN 3. This colorless salt is the gas-forming component in some car airbag systems. It is used for the preparation of other azide compounds.
In geochemistry, paleoclimatology and paleoceanography δ 18 O or delta-O-18 is a measure of the deviation in ratio of stable isotopes oxygen-18 (18 O) and oxygen-16 (16 O). It is commonly used as a measure of the temperature of precipitation, as a measure of groundwater/mineral interactions, and as an indicator of processes that show isotopic fractionation, like methanogenesis.
98 airports have paved runways from 4 km to 5.5 km in length. 8 km – length of Palm Jebel Ali, an artificial island built off the coast of Dubai; 9.8 km – length of The World, an artificial archipelago that is also built off the coast of Dubai, whose islands resemble a world map
An early Hughes YAH-64 prototype with T-tail. After the AH-56 Cheyenne was cancelled in 1972 in favor of projects like the U.S. Air Force A-10 Thunderbolt II and the Marine Corps AV-8A Harrier, the United States Army sought an aircraft to fill an anti-armor attack role that would still be under Army command.
This was a standard size for ship models produced by Revell and Italeri but they have moved from it. 1:700: 0.435 mm: Ship models: This is the scale that most manufacturer chose to produce the largest series of waterline plastic model ships and submarines. Full hull models are popular in that scale as well. 1:600: 0.508 mm: Ship models
The English word beaver comes from the Old English word beofor or befor and is connected to the German word biber and the Dutch word bever.The ultimate origin of the word is an Indo-European root for ' brown '. [2]
He also envisioned a fast breakthrough tank, similar to the British cruiser tank, which was to be armored against enemy anti-tank weapons and have a large, 75 mm (2.95 in) main gun. Lastly, Germany needed a heavy tank , armed with a 150 mm (5.9 in) cannon to defeat enemy fortifications , and even stronger armor.
The MiG-21 jet fighter was a continuation of Soviet jet fighters, starting with the subsonic MiG-15 and MiG-17, and the supersonic MiG-19.A number of experimental Mach 2 Soviet designs were based on nose intakes with either swept-back wings, such as the Sukhoi Su-7, or tailed deltas, of which the MiG-21 would be the most successful.