Correction for the length of a Grain of Sand
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How long is 1,360,000 ropes?
It's about 6,500,000,000 times as long as a Grain of Sand
The length of a Grain of Sand is about 0.000205 ropes.
(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.000205 ropes. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 2.480 ropes in height.