Eli5 – Why aren’t washing machines spherical?

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Why are they cylindrical shape and not ball shape. Would that not be better for more random movement of the items inside and therefore be better for washing them?

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24 Answers

Anonymous 0 Comments

I think it would be hard to propel a sphere vs a drum that can be connected to the base to propel movement.

Anonymous 0 Comments

The highest centrifugal force (force made by spinning things) is at the edges, with a cilinder there is much more space at the edges than with a ball shape. This means that more clothes get the maximum force at once and more spread out over a large surface where all the water can get out. With a ball shape all of the clothes would kinda bunch up on those other side decreasing surface area covered.

Anonymous 0 Comments

You can put more clothes in it if it’s a cylinder. No matter what shape it is, if it spins it takes up a cylinders worth of space, so making it any other shape is just making it smaller than it could be.

Anonymous 0 Comments

I think it would be hard to propel a sphere vs a drum that can be connected to the base to propel movement.

Anonymous 0 Comments

You can put more clothes in it if it’s a cylinder. No matter what shape it is, if it spins it takes up a cylinders worth of space, so making it any other shape is just making it smaller than it could be.

Anonymous 0 Comments

You can put more clothes in it if it’s a cylinder. No matter what shape it is, if it spins it takes up a cylinders worth of space, so making it any other shape is just making it smaller than it could be.

Anonymous 0 Comments

I think it would be hard to propel a sphere vs a drum that can be connected to the base to propel movement.

Anonymous 0 Comments

Volume of a cylinder is greater than the volume of a sphere of the same size. The machine would need to be bigger to handle the same load

Anonymous 0 Comments

The highest centrifugal force (force made by spinning things) is at the edges, with a cilinder there is much more space at the edges than with a ball shape. This means that more clothes get the maximum force at once and more spread out over a large surface where all the water can get out. With a ball shape all of the clothes would kinda bunch up on those other side decreasing surface area covered.

Anonymous 0 Comments

The highest centrifugal force (force made by spinning things) is at the edges, with a cilinder there is much more space at the edges than with a ball shape. This means that more clothes get the maximum force at once and more spread out over a large surface where all the water can get out. With a ball shape all of the clothes would kinda bunch up on those other side decreasing surface area covered.