Underwater Bullets at 27,000 fps
If you're wondering how it's even possible to shoot a gun underwater, gunpowder contains oxygen — a key element in the firing process — the gun still goes off exactly as it would on land.
Water is 800 times denser than air, so unlike a bullet fired above the surface, once the bullet hits the water it immediately begins slowing down.
Reference:
http://www.sciencechannel.com/tv-shows/outrageous-acts-of-science/videos/firing-a-gun-underwater/
Watch researcher fire weapon at himself - underwater- in terrifying physics experiment.
https://www.youtube.com/watch?v=tzm_yyl13yo
#science #underwaterbullets #physics
Also you should make sure the gun will survive in water. It is 800 times more pressure in the barrel when firing
ReplyDeleteProvided that the gun can shot under water not all of them can
ReplyDeleteInteresting area of research: supercavitating projectiles. High speed blunt tip produces a vapor cavity in the water so the rest of the projectile body operates in very low drag conditions. They can move at supersonic speeds underwater for significant distances. en.wikipedia.org - Supercavitation - Wikipedia, the free encyclopedia and a functional exemplar of the type: https://en.wikipedia.org/wiki/VA-111_Shkval
ReplyDeleteTIL in reading: Russia and Germany both make guns that fire supercavitating rounds. https://www.youtube.com/watch?v=ze78qKX2o3s has a blurry slow-mo video of the Russian version firing underwater.
ReplyDeleteJohn Bump don't forget about supercavitating torpedoes...
ReplyDeleteI'm agitating for supercavitating subs, Eric Cha: the thought of small subs dogfighting like WWI aircraft at 200 knots is pure awesomeness.
ReplyDelete...and don't try this at home in a kiddie pool...
ReplyDelete