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[quote]QUOTE: Originally posted by mersenne6 gbailey - those were two GREAT books! I wasn't as interested in the hydrogen as I was in making the synthetic fiber. It seemed like it took forever to save up the money needed for all the ingredients but I did it and the experiment worked as advertised. I tried to put together the money needed for building a rocket as per the handbook but Dad put the kibosh on that project when he pointed out we didn't have sufficient room to launch and recover without risk of the expended rocket slamming into something other than dirt. However, all was not lost - since I didn't believe him he taught me the basics of computation of area needed for a safe impact for an object falling from a distance of X feet in the presence of wind of varying velocities. [/quote] I tried to teach myselt this one spring in a 20 acre field ready for planting. I kept shooting an arrow straight up into the air and watching how the wind carried it off vertical. When I had enough of that I decided I should try something a little smaller. Like a .22 long rifle. Needless to say as soon as I pulled the trigger I realized I was not going to be able to watch an see if the bullet was really carried off by the wind. Judging by the plume of dust it went about 18 inches down wind. Then tere were the blasting caps..... Growing up on a farm was FUN!
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