PURPOSE: To demonstrate the conservation of angular momentum

DESCRIPTION: Metal weights are pulled toward the center of a metal rod while the whole thing is spinning.

SETUP TIME: Medium

COMPONENT LIST:

Whirlybird apparatus (on CM shelves)

SUGGESTIONS: This is a moderately tricky demonstration in that the string must be kept from tangling while the apparatus spins.

REFERENCES: PIRA 1Q20.10

OTHER NOTES: