Thread: Forest Giants

Originally Posted by No.3

Had a few stories like that popping piles in the water to get rid of them. Easier than trying to cut them off when they've been impregnated by coarse sand and small stones due to water action - rather stuffs the chain...

Drill a few holes in the right locations to form a shear plane and back right off to somewhere safe and pop the thing off. Usually with a strop on it, tied off to something so you can find the thing again and lift it out. Of course, the one that didn't want to play and for whatever reason was last seen heading straight up trailing a strop, a piece of rope and the lump of timber lying on the bank that the rope was tied to. Never did find that one, went straight up and as far as we know it never came back down. I know the laws of physics state that 'what goes up must come down' but also some laws seem to be made to be broken!

During the Pascal-B nuclear test of August 1957,[8][9] a 900-kilogram (2,000 lb) iron lid was welded over the borehole to contain the nuclear blast, despite Brownlee predicting that it would not work.[8] When Pascal-B was detonated, the blast went straight up the test shaft, launching the cap into the atmosphere. The plate was never found.[10] Scientists believe compression heating caused the cap to vaporize as it sped through the atmosphere.[8] A high-speed camera, which took one frame per millisecond, was focused on the borehole because studying the velocity of the plate was deemed scientifically interesting.[8] After the detonation, the plate appeared in only one frame. Regarding its speed Brownlee reckoned that "a lower limit could be calculated by considering the time between frames (and I don't remember what that was)", and joked that the best estimate was it was "going like a bat!".[10] Brownlee estimated that the explosion, combined with the specific design of the shaft, could accelerate the plate to approximately six times Earth's escape velocity.[10]

From

https://en.wikipedia.org/wiki/Operation_Plumbbob


Search term

manhole cover in space