Monday, 28 October 2013

Underwater Explosion Phenomena

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The physics of underwater explosion phenomena is fascinating. The bubbles formed from the explosions of percussion caps, to those formed by nuclear devices, show an oscillatory and migrating behaviour. I became aware of the unusual behaviour of explosion bubbles in the following video by Gyppor, "Shotgun primers detonating underwater, super slow motion study." The whole video is well worth watching, but if you skip to 4min 36s in, you can see the bubble formed, oscillating and being "attracted" to the floor of the tank.

Spark Generated Bubbles - here
SAVIAC Proceedings 66th Shock and Vibrations Symposium, Biloxi, MS, Vol.2, pp265-276, November 1995 

Underwater Explosion Phenomena - The parameters of migrating bubbles. 1962, by the Explosions Research Department, U.S. Naval Ordinance Lab, Maryland. Online here

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Unrelated to this post, below is an example of
eclectic science esoterica 

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WARNING - Many subjects outlined within this site are extremely dangerous and are provided here for information only. Please don`t experiment with high voltages or chemicals unless you are fully conversant with safe laboratory practices. No liability will be accepted for death, injury or damage arising from experimentation using any information or materials supplied.