Oxy-acetylene safety demonstration - GIF

[bruce.desertrat]

Somehow, I fail to see this as a safety demonstration. At best it was a demonstration of how a mixture of volatile gas and oxygen will explode when ignited. There is no explanation of the type or mix ratio of which gas was used. Obviously OXY/ACT, can be explosive. but the same can be said for just about any combustible gas when mixed with oxygen.

My welding shop teacher in High School did a demonstration like this, only smaller scale (baloons) First he filled on up with Oxy, it wnt 'pop' , then just acetylene, it went 'foomp' quietly with little black threads everywhere, then with a mix . "Listen close, so you can tell the difference" he said. 'BAAANG' and we all jumped back involuntarily. May not have been scientific, but it did impress upon a buncha 15-year-olds not to **** around with that.