which is the more stable structure: the pyramid, the egg, the cube or the sphere?

Answer 1

The pyramid is the most stable if it is sitting on the ground (least likely to fall over), the egg is the most stable structure if it is falling through atmosphere (least likely to wobble or tumble), and the sphere is the most 'stable' (strongest) for holding pressure or in a pressurized environment (pressure is even all around it).

Answer 2

a sphere has the ability to take the greatest forces as the moments are calculated radially.
The next is the pyramid shape, as the limiting factor for resistance is the center of face to edge distance and how the face is braced.
The cube follows for the same reason as the pyramid, but has extra faces and needs to be braced in more directions than a pyramid
the egg would be last as it is a combination of different radius spheres

Answer 3

In the general case, I'd go with the pyramid. It can't roll away, and it has a lower center of gravity than a cube. However, if it is a tall, skinny pyramid, I'd go with the cube.

Answer 4

If you mean stable as not falling over, the pyramid and the cube with their flat bases fit the bill.

Answer 5

The pyramid is the most stable structure .

Answer 6

The pyramid , it sits flat on the ground and has a pointed top base deflecting things that may hit it and able to weather the wind and rain better. That's why the ancient pyramids still stand to this day !

Answer 7

The pyramid

Answer 8

The pyramid. Do see any of those other shapes lasting since the egyptian times?

Answer 9

It depends on how you define "stable structure."

If you are talking about "most resistant to motion" then I would say the pyramid because it has the broadest base and (relatively) the lowest center of gravity.
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Answer 10

Really depends on where the pressure is coming from.