翻訳と辞書
Words near each other
・ Ground wave propagation
・ Ground woodpecker
・ Ground Xero
・ Ground zero
・ Ground Zero (13AD album)
・ Ground Zero (1987 film)
・ Ground Zero (2000 film)
・ Ground Zero (As Blood Runs Black album)
・ Ground Zero (band)
・ Ground Zero (blues club)
・ Ground Zero (book)
・ Ground Zero (campaign)
・ Ground zero (disambiguation)
・ Ground Zero (television show)
・ Ground Zero Gallery
Ground Zero Indicator
・ Ground Zero Man
・ Ground-adjustable propeller
・ Ground-Based Interceptor
・ Ground-Based Midcourse Defense
・ Ground-Based Radar Prototype
・ Ground-controlled approach
・ Ground-controlled interception
・ Ground-coupled heat exchanger
・ Ground-directed bombing
・ Ground-dove
・ Ground-glass opacity
・ Ground-launched cruise missile
・ Ground-level power supply
・ Ground-line hitch


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Ground Zero Indicator : ウィキペディア英語版
Ground Zero Indicator

The Ground Zero Indicator, known by the acronym GZI was a specially designed shadowgraph instrument used by the British Royal Observer Corps during the Cold War to locate the Ground Zero of any nuclear explosion.
==Overview==
The GZI consisted of four horizontally mounted cardinal compass point pinhole cameras within a white enamelled metal drum, each 'camera' contained a sheet of photosensitive paper mounted within a clear plastic cassette on which were printed horizontal and vertical calibration lines delineating compass bearing and elevation above the horizon. The bright flash from a nuclear explosion would burn a mark on one or two of the papers within the drum. The position of the burn spot enabled the bearing and height of the burst to be estimated. With triangulation between neighbouring posts these readings would give an accurate height and position.
The altitude of the explosion was important because a ground or near ground burst would produce radioactive fallout, whereas an air burst would produce only short distance and short lived initial radiations (but no fallout). Once combined with the peak-overpressure readings from post Bomb Power Indicator readings the power of the burst in megatons could also be calculated by the Triangulation Team in the group control building, using a hand held plastic calculator device.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Ground Zero Indicator」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.