If you ask how much an object like a bicycle weighs, there’s a simple answer. But if you ask where the mass of a bicycle is, things get more complex. The bike has a lot of parts—some of which ...
Michael Rogan is SKI Magazine’s Director of Instruction, head coach of the PSIA demo team, and a Special Project Coach for the U.S. Ski Team. In other words, he’s the guy who teaches Olympians how to ...
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