A demonstration of the conservation of angular momentum using a Hoberman sphere. Angular momentum depends on the rotational velocity of an object, and on its rotational inertia. When an object changes its shape, its angular velocity will also change.pic.twitter.com/UUQqALp3HW
-
yes .. it's applying an external torque along the rotation axis .. i.e. it's not a closed system
when he lets it drop its a somewhat more faithful representation
-
-
good question, and yes as it appears to be spinning on a torsion wire so you would get a same effect. The two would in effect cancel for the purpose of the demonstration if the force he provided from pulling if precisely the same as the force applied by gravity
- 8 more replies
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.