Why do they not use other shapes , such as a sphere or cuboid , why is it just restricted to cylinder?
In: Economics
Cylinders are strong and relatively simple to make.
A cylinder can be made with just 3 pieces, the side is just one piece of metal rolled into a tube, and then the top and bottom pieces get sealed on.
They also fair better than boxy containers because the corners of boxy containers concentrate stress and break, a corner less circle more evenly spread out load/impact.
The main draw back of a cylinder is all the little space that you lose between each cylinder, which is why no one uses spheres, they’re hard to pack and have a lot of empty space between them.
Cylinders are easier to pack, stackable and can be pushed up against each other pretty easily. Yes there is some wasted space that you wouldn’t get with cube containers, but the benefits of the cylinder (simplicity and strength) outweigh that negative.
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