How Things Work – Yoyo
Автор: Element 18
Загружено: 2023-03-24
Просмотров: 14006
Описание:
The yo-yo, it may look like a kid’s toy, but this 21st century pro version is used for competition sport. How does this ingenious device pull off gravity defying tricks and effortlessly return to your hand?
Deceivingly simple on the outside, this miniature machine is packed full of surprises. Silicone O-rings grip the string to accelerate the spool, precision balanced aluminium rings produce extra spinning momentum that rotates the yo-yo as fast as the blades of a jet engine, and an intricate ring of ball bearings cut friction and make impossible tricks, possible!
The secret to keeping a professional yo-yo stable in flight lies in how engineers design, build, and balance its intricate parts.
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