>Not in small sizes they don't. Rotational inertia goes as the square >of the radius. That's for a single particle. When you increase the radius you create room for more particles, which brings in a second quadratic, namely pi r^2, the area. Thus rotational inertia of a disk of fixed thickness goes as the fourth power of the radius. If you scale the whole thing up including the thickness, it goes as the fifth power. Vaughan -- Subcription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.ml.org
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