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Feb 22, 2023 at 20:24 comment added Ashlin Harris +1 for considering arrangement as well as amount in the definition. άνθρωπος's answer suggests that a heap must also be haphazard, making the notion of a "properly arranged heap" an oxymoron.
Feb 22, 2023 at 1:30 comment added Xavier @Misha Lavrov OK, maybe theoretically possible, but very unlikely. Maybe we also need to define what a grain of sand is.
Feb 22, 2023 at 1:20 comment added Misha Lavrov Some grains of sand retain the crystal structure of the mineral they're made of (others have been eroded and are more sphere-like). So in some cases, it might be possible to balance one grain of sand on top of another, and have a heap of 2 grains of sand for as long as you can avoid breathing on it.
S Feb 21, 2023 at 22:06 review First answers
Feb 22, 2023 at 7:33
S Feb 21, 2023 at 22:06 history answered Xavier CC BY-SA 4.0