I wanted to explain with another analogy because I think it's important to understand the concept and it's relation to hammer actions. I'm sure everyone has tried the following experiment: take a (woodworking) hammer and knock in a nail holding the hammer near the head, then, with the same hammer, knock in a nail holding the hammer at the end of the grip. You can feel the difference...the *only* thing changed is the moment of inertia (increased in the second example). The hammer is harder on the wrist but the nail goes in a damn sight faster. In both cases, however, the hammer mass is identical and would give precisely the same strike weight value. That's the difference between static (mass) and dynamic (moment of inertia). Authentic Reproductions of 18th and 19th Century Pianos Waterloo, Ontario, Canada tel: 519-885-2228 fax: 519-763-4686
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