They did that on Mythbusters too.
I watched a mythbusters episode titled
" Air Cylinder Rocket " Season 4, Episode 21
that was debunking the possibilities
of using a compressed air cylinder to propel a small boat.
the method used was a simple pipe leading from the air cylinder to the rear of the boat , the pipe then turned 90 degrees downward , then turned 90 degrees horizontal again.
the exit where the air came out was apx 2 inches above the bottom of the boat.
the test started and as most boats do the boat took off , but this boat took off pretty fast , then it lost momentum.
they debunked it , I debunked them.
they didnt account for the boat riding on top of the water
so when the boat took off , the boat lifted up.
lifting the pipe out of the water...
compressed air cant push against air as good as it can against water so the boat lost momentum.
I wouldnt place much faith in the engineers on mythbusters.
heres a link to the section about the tank going through a brick wall.
through a walland heres a video showing part of the boat experiment.
overview of the episode heres the effects of not venting a tank really impressive.
train tank car implodes-free vacume energyshoot some steam in it , but dont vent it , and you get all
the free energy you could possibly need.
imagine a large piston...
