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Pastimes : Don't Ask Rambi -- Ignore unavailable to you. Want to Upgrade?

To: Jacques Chitte who wrote (54566)	8/15/2000 2:34:50 PM
From: cosmicforce	Read Replies (2) \| Respond to of 71178

It IS an environmentally execrable practice. Ah, hydrocarbon fumes in the sewer. Bring on the flammables. We used to drop firecrackers down manholes when I was a kid until my dad told me about methane build up. Apparently when he was a kid, they did this and caused a detonation that lifted the manhole covers all the way up and down the street. Ooops. I used to make an acetone fume cannon. Used 3" diameter carpet rolls that were 6 feet long with a coffee can jammed into the end. Using a syringe, we'd squirt a little stream of acetone into a lighting hole. The stuff would evaporate and, when lit, would send our projectile (the leg of one of our cut-off jeans rolled, tufted and bound with duct tape), 500 feet in the air. Our maximum down range was probably close to 500-600 feet.