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Talk:Hourglass puzzle: Difference between revisions
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The term '''hourglass''' is a device used to measure '''one hour'''.
The generic term for such a device is a '''sandglass''', which can measure specific times (set/defined during manufacture); usually filled with a fine (dry) sand, pouring/running (by gravity) from one vessel to another. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 04:14, 30 December 2020 (UTC)
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