For example, it the light has to pass through thin glass such as a household window - light loses approx. As I mentioned above - the time difference is too tiny for a human to react and create a physical movement such as closing a blast curtain.Īlso, the 'speed of light' is for the travel of light in a vacuum. True, the time difference between the first radiation is created and the visible light is created is very tiny, but things other than light will reach a detector before the light will. Light is not the first thing which a nuke generates. "Light" is just one type of electromagnetic radiation. While it is called the 'Speed of Light' it is actually the speed of "massless particles and associated fields" Light and other radiation travels at around186,000 miles a second.Ī nuke detonation sends out massive electromagnetic radiation before the light of the explosion is generated. Quoting Pygmalion ( Reply 14): Since light travels as fast as any other radiation, there is no possible "warning", Once the "detector" has picked up the flash its already there. Since Helfgen was not part of the official press corps, he was not in the official viewing area (and could not hear the countdown), but hidden in prone position on a hillside. This test was open to American reporters, but off limits to foreign ones. This project started in Germany, but has spread across Europe and started on other continents as well.Ī commercial European equivalent would be Īs for witnessing a nuke blast without protection, the German journalist and cyclist Heinz Helfgen, who from 1951 to 1953 cycled around the world and financed his trip by writing articles for several newspapers, secretly entered the Nevada test site by bicycle when an atmospheric test was in progress. As for the time signal, they use the GPS signal. It is also an open source project, with a selfbuilt detector costing about €200, w2hich will then be connected to a server via the internet. Quoting flyingturtle ( Reply 1): *: This reminds me of the various meteo companies that use radio equipment and precision clocks to detect and range lightning strikes. *: This reminds me of the various meteo companies that use radio equipment and precision clocks to detect and range lightning strikes. They were used to supervise the nuclear test ban treaty.īut then, the radiation has to arrive at the detector quite a bit faster than the light from the nuclear blast. You can detect radio "noise" in a certain frequency range.* Or you can do it like the Vela satellites, which detect X-rays, neutrons and gamma radiation. Quoting DFWJIM1 ( Thread starter): If there is how is it able to detect that a nuclear bomb is going to explode in the general area of the aircraft? It's rather the brightness that is "blinding", which can readily distract an air crew though. He watched the nuclear test through a car window, knowing that ordinary glass filters out most of the UV radiation. nuclear test, and hasn't worn these flash protection goggles. The famous physicist Richard Feynman was the only one guy to have attended an U.S. Quoting DFWJIM1 ( Thread starter): In effect the light gave Booth time to closeĪ screen in the cockpit to prevent being blinded by the flash of the bomb.
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