Figure skating and simple machines?

Question

What simple machines make up a figure skate?

Answer 1

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What idea(s) and/or inventions had to be developed before it could be created?

Skates make use of one of the six simple machines, the inclined plane. Shoes were another important invention that were necessary to the invention of skates. In order to make skates with a metal blade people first had to have the ability to smelt (purify) and work metals like iron.