< User:Kingturtle
Political theory
World War II
Cold War Part One (of Three) (1945-1963)
==Cold War (part two of three) ((1964-1980)
Race outline
Psychology topics
Personalities in U.S. History
Presidents
Mythology
... the other end of the axis pushes against the lower rim of the groove. While the axis is slipping around inside the groove, the friction between the axis and the groove ...