the bags that make a big boom
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Yesterday i learned in school you guys were our allies but never really helped too much during WWII, just said, eh, we'll stay out of this one...
Koolaid, where are you from?You need to seriously question the teacher who told you that Britain stayed mostly out of the war and din't do much to help.Britain was involved from the start - we declared war on Germany Spetember 1st, 1939. The US did not become properly involved until December 7th, 1941 (you may have heard of it, it was a movie). We were involved right to the bitter end - 60% of the troops at the start of Operation Overlord were British and Imperial (Canadian).You'll be claiming next that US troops acquired the first Enigma machine...
But stayed out of the war mostly because Great Britain was isolated from parts most of Europe by water, and at one point had it to where everybody had to drive with no lights and have black curtains so bombers couldn't see.
A much louder but the "same" is when you put a piece of carbide in hydrogen peroxide it will react as this equalization shows: CaC2 + 2H2O2 = Ca(OH)2 + O2 + C2H2andCaC2 + 2 H2O = Ca(OH)2 + C2H2So it will produce a lot of acetylene and some oxygen. The mixture of this two gas is sensitive to pressure and if you make this in a bottle, than you can get a really effective voice grenade. And one thing: don't stand close to this, because it is louder than a normal pyrotechnic and when it explodes, than you can get covered with hydrogen-peroxide what is not so good.
blow air into and quickly seal it retaining most of the air, place on ground and stomp on it...BANG!!