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Originally Posted by Matt H.
Thank you all very much for your advice. Tonight I tested the cannon with 80PSI and shot a well rolled and rubber banded tee-shirt lubricated with talcum powder 25 yards. This is a significant improvement over last nights performance it is still lacking.
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I hope you don't plan on using talcum for any use at an actual event... for the sake of any asthmatics in the crowd.
And Talc itself has some heath problems as well, take a look at this bit from Wikipedia:
Quote:
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Originally Posted by Wikipedia- Talc
Several studies have established preliminary links between talc and pulmonary issues, lung cancer, skin cancer and ovarian cancer. This is a major concern considering talc's widespread commercial and household use. However, no conclusive study has yet been made to determine either the toxicity and/or carcinogenic nature of talc and the long history of safe use suggests that these concerns are unfounded. The U.S. Food and Drug Administration (FDA) considers non-asbestiform talc, that is talc which does not contain potentially carcinogenic asbestiform amphibole fibers, to be Generally recognized as safe (GRAS) for use in cosmetics. In 1993, a US National Toxicology Program report found that cosmetic grade talc caused tumours in animals, even though it contained no asbestos-like fibres. Scientists have been aware of the toxicity of talc since the late 1960s, and in 1971 researchers found particles of talc embedded in 75 percent of the ovarian tumors studied.
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I know, not really related to the subject of Air Cannons, but I thought it was important to point out anyways, especially seeing as my mother almost died from an asthma attack after someone thought it would be a neat idea to put talcum powder in her sleeping bag on a camping trip she went on once. Just wouldn't want anyone grabbing a T-shirt thats been launched at them, only to put it on and stop breathing.
