The concept of the "worm gear" dates back to ancient times. Over the centuries, the design and use of this gear has evolved and improved. It describes a gear that contains a spiral or "worm" like groove in it. Its early applications mainly involved the drawing of water, but today it has many varied applications-from power transmission to manufacturing. 

An engineering major's must have: The most comprehensive

Engineering Mechanics: Statics and Dynamics

The knowledge of mechanics of materials is the very foundation for advanced topics in mechanical, civil, aerospace, chemical, ceramic engineering and materials science. 

Your ticket to excelling in mechanics of materials

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