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Gear is a mechanical part that has teeth that match together to transmit torque, which is responsible for receiving and transmitting force to other parts. This article explains the key facts and context behind useful inventions.
Appeared in 27 BC, gears are considered one of the most useful inventions of humankind. It appears in every sophisticated structure like watches or bicycles, cars,.

Today, gears have been produced in the most sophisticated and precise way by machines. The video below will help us understand the complicated process of creating a gear.
FAQ
What is useful inventions?
Gear is a mechanical part that has teeth that match together to transmit torque, which is responsible for receiving and transmitting force to other parts.
What makes useful inventions notable?
This article explains the key facts and context behind useful inventions.
What are the key facts about useful inventions?
Appeared in 27 BC, gears are considered one of the most useful inventions of humankind.
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