this post was submitted on 24 Sep 2024
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Science Memes

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[–] fossilesque@mander.xyz 6 points 2 months ago* (last edited 2 months ago) (1 children)

Take a handful of sand. Turn your first perpendicular to the ground and let it fall slowly. What shape does it form? It's one of the most stable shapes you can make.

[–] BedSharkPal@lemmy.ca 5 points 2 months ago (1 children)
[–] Lifter@discuss.tchncs.de 8 points 2 months ago (1 children)

A pyramid is just a cone with a square base.

[–] xx3rawr@sh.itjust.works 7 points 2 months ago (1 children)

A cone is just a pyramid whose base has infinite sides

[–] Lifter@discuss.tchncs.de 1 points 1 month ago (1 children)

No, a cone can have any flat shape as its base, wherefor a pyramid - which only has four sides - is also a cone.

[–] xx3rawr@sh.itjust.works 1 points 1 month ago (1 children)

By definition, a pyramid can have any polygon as a base, not just a square. A cone can ONLY have a circle as a base.

[–] Lifter@discuss.tchncs.de 1 points 1 month ago

I say Pyramids ⊂ Cones. You say Cones ⊂ Pyramids. Therefore Cones = Pyramids.