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The next underground test was Teapot Ess, on 23 March 1955. [10] The one-kiloton explosion was an operational test of an ' Atomic Demolition Munition ' (ADM). [ 15 ] It was detonated 67 ft (20 m) underground, in a shaft lined with corrugated steel, which was then back-filled with sandbags and dirt. [ 16 ]
Modern air pollution measurement is largely automated and carried out using many different devices and techniques. These range from simple absorbent test tubes known as diffusion tubes through to highly sophisticated chemical and physical sensors that give almost real-time pollution measurements, which are used to generate air quality indexes.
Test cycles specify the conditions under which the engine or vehicle is operated during the emission test. There are many different test cycles issued by various national and international governments and working groups. [1] Specified parameters in a test cycle include a range of operating temperature, speed, and load. Ideally these should ...
Project Gasbuggy was an underground nuclear detonation carried out by the United States Atomic Energy Commission on December 10, 1967 in rural northwestern New Mexico.It was part of Operation Plowshare, a program designed to find peaceful uses for nuclear explosions.
Test bench for a miner's closed circuit self-rescuers. A self-contained self-rescue device, SCSR, self-contained self-rescuer, or air pack is a type of closed-circuit SCBA [1] with a portable oxygen source for providing breathable air when the surrounding atmosphere lacks oxygen or is contaminated with toxic gases, e.g. carbon monoxide.
Smoke detector mounted on a ceiling. A smoke detector is a device that senses smoke, typically as an indicator of fire.Smoke detectors/Alarms are usually housed in plastic enclosures, typically shaped like a disk about 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.
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Others regulate emissions from industry, power plants, small equipment such as lawn mowers and diesel generators, and other sources of air pollution. The first automobile emissions standards were enacted in 1963 in the United States, mainly as a response to Los Angeles' smog problems.