1) Some more fact-checkiing from Ken
Tindell via Twitter: "A nickel weighs 5g.
It would take 2,755 18-wheeler trucks
(max legal tare 80,000 lbs) to carry the
money."
2) Consider how much a billion dollars in
nickels would weigh: you need 20bn of
them, and at 5g each that's 0.005 kg x
20,000,000,000 = 100,000,000 kg =
100,000 tonnes.
3) There probably aren't that many
nickels in circulation anyway. The New
York Times noted in 2006 that there were
about 20bn nickels in circulation at the
time; rising metal prices were
encouraging people to melt them for the
copper and zinc. Another dose of reason.
4) The amount of copper involved (95%
of each nickel) is truly humungous
because a billion is a very big number.
100,000 tonnes of copper (let's assume
that's what it is for now) would, at a
density of 8,940 kg/cubic metre (that's
8.94 tonnes/cubic metre), occupy just
over 11,185 cubic metres. As an Olympic
swimming pool has a capacity of 2,500
cubic metres (aka " one olymp "), that
would be the same as four and a half
Olympic swimming pools filled entirely
with copper . Imagine that if you can.
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