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mathmatician needed
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Posted by mark on May 03, 2007 at 13:34:08 from (172.129.198.62):
Having found the price of iron wheel weights to exceed the value of gold, rubies, and gasoline combined....(just ask anybody who has some for sale), I have decided to make my own.....from lead. I have plenty on hand, and checking the weights of materials, it is about 4.7X the weight of concrete. Lead weighs 708 pounds per cubic ft. vs. 150 pounds for concrete. This makes the lead a far better choice for maximum weight density. So, if the weight diameter is 18", how thick would it have to be made, to weigh 500 pounds? Remember, lead weighs 708 pounds per cubic foot. Thanks.
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