|Brian Wesley Rich's|
Giant Air Cannon
Construction of the cannon is simple:
Operating the air cannon:
Giant Smoke Rings
The air cannon will produce smoke rings if you fill the box with smoke before you fire. The type of smoke I use is produced by combining the vapors of hydrochloric acid and ammonia. This "smoke" is ammonium chloride and water mist.
To do this, pour a little bit of each liquid onto separate paper towels (while wearing gloves), and drop both towels into the air cannon. But watch out! Both vapors are very noxious before they combine. The acid fumes can cause damage to lungs and eyes. Keep your face away from the opening of the cannon, and don't fire it towards the faces of others.
You can avoid the hazards of working with acid by generating water fog using dry ice. To do this conveniently, construct a fog generator, and attach the hose from it to the Giant Air Cannon. Or, more simply, drop a few pieces of dry ice into the air cannon, and wait between each firing for some fog to accumulate. This isn't as effective, but its simplicity will allow you to experiment with fog right away.
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Copyright © 2000-2020 Brian W. Rich
Last Updated: 27 August, 2020
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