Post #1226353
2026-02-28 21:06 UTC
A1: It's a trick question; they weigh the same amount.
A2: It's a doubly trick question; the pound of feathers weighs more.
A3: It's a triply trick question; the ounce of gold weighs more.
(2/3, explanations in next post)
Replies (1)
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@TobyBartels@mathstodon.xyz 2026-02-28 21:07
E1: You'll need a greater volume of feathers to make a kilogram, but the weight is the same: the weight of 1 kg. E2: A kilogram is a kilogram, but gold is measured in troy pounds, which are smaller than the usual avoirdupois pounds (0.3732417216 kg vs 0.45359237 kg). E3: A troy pound is so small because it's only 12 ounces, not 16. A troy ounce is still different from an avoirdupois ounce, but now it's slightly larger (0.0311034768 kg vs 0.02834952312 kg). (3/3, unless I redo all of this in grains)