I'm awful at math, but I wanted to know how much it would weigh and cost to make an 8x10 rectangular hammock tarp made of one dollar bills. This is what I've discovered.
According to the Bureau of Engraving and Printing, a US dollar weighs 1 gram.
A dollar measures 2.61"x6.14". That's 16.0254 square inches.
Tarp:
8x10=80. 80x12=960 square inches.
960/16.0254=59.9049something (rounding time 60 $1 bills to cover an 8x10 tarp)
Now weight:
60 total grams. 80 square feet/3=26.6667 square yards. 60 grams/26.6667 yards=2.24999something grams per square yard. 2.24999something grams/28.35 grams per ounce=0.079365something ounces per square yard! Talk about SUL! Unless my math is goofed. Probably a ten out of seven chance of that.
Obviously this doesn't include the cost or weight of tie outs, taping, seam sealing, stitching and whatever else it takes to make a tarp. It also doesn't factor how much heavier the tarp will get when it rains. A dollar is made of 75% cotton and 25% linen, so there's that too. Might need a coat of polyurethane, which it probably needs for tear resistance too. On the plus side, the many stitches and patchwork nature of such a tarp could offer a sort of ripstop-gridlike effect.
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