Talk:Isaac Beeckman

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circular velocity is conserved

Does the circular velocity here, refer to the property of an object with a rotational/angular velocity or to the property of an object in orbit? Rotational/Angular velocity is indeed conserved. The velocity of an object in orbit is conserved, but naturally this is thought to be a linear velocity under the influence of gravitational attraction from secondary body. --Firefly322 (talk) 10:40, 18 April 2008 (UTC)