running shoes

Running shoes

Engineers design running shoes for protection, performance, and comfort. Engineers understand how much force travels from the ground through the shoe to the foot. Through the work of engineering, weight is distributed throughout the whole foot — heel to toe.
— Fun and Exciting Facts About Engineering

shoe – an item of footwear. Shoes may vary from a simple flip-flop to a complex boot. Shoes may have high or low heels, although in western cultures, high heels are considered a women’s style. Shoe materials include leather or canvas. Athletic shoe soles may sometimes be made of rubber.

The use of shoes began in the period between about 40,000 and 26,000 years ago, based on the fact that the thickness of the bones of the toes (other than the big toe) decreased during this period, on the premise that going barefoot results in greater bone growth before this period.

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