Chapter 2. Playing with Gears
Solutions in this chapter:
Introduction
You might find yourself asking “Do I really need gears?” Well, the answer is yes, you do. Gears are so important for machines that they are almost their symbol: Just the sight of a gear makes you think machinery. In this chapter, you will enter the amazing world of gears and discover the powerful qualities they offer, transforming one force into another almost magically. We’ll guide you through some new concepts—velocity, force, torque, friction—as well ...
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