> On Aug 19, 2020, at 5:30 PM, H. Carl Ott <[email protected]> wrote: > > Re calcium carbide. > > I'll have to open the can to see if it's still any good. Probably trash by > now, > I always wanted a cannon. Could not buy one, Had to make my own out of > soup cans and a piezo sparker. Nice booms.
We made mortars out of metal pipes with spark plugs and piezo igniters. The ammo was feed corn cut into hockey pucks. I also had a coffee can with a spark plug. I put one drop of gasoline in it, attached the lid, waited 10 seconds, and then hit the igniter. The lid would bounce off of the ceiling. Terry Bowman, KA4HJH "The Mac Doctor" https://www.astarcloseup.com/ “The book said something astonishing, a very big thought. It said that the stars were suns, only very far away. The Sun was a star, but close up.”—Carl Sagan, Cosmos, 1980 -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/B72E941A-6C4B-4D28-8DC9-60A8F014CFC0%40gmail.com.
