Steve complained to his friend Al that lovemaking with his wife was becoming routine and boring.
"Get creative buddy. Break up the monotony. Why don't you try playing doctor for an hour?"
"Sounds great," Steve replied, "but how do you make it last for an hour?"
"Hell, just keep her in the waiting room for 45 minutes!"
Foucault's pendulum resultIn 1851, the rotation of the Earth was proved experimentally by Leon Foucault. After weeks of work, he recorded in his journal that he made this discovery at 2:00 am working with a pendulum in the cellar of the house he shared with his mother. Using a steel wire 2-m long with a 5-kg brass bob, he had made a pendulum suspended in a way that freely permitted it, he found that its plane of oscillation slowly rotated relative to the ground. This led to using much longer versions of his pendulum. He found that the angular velocity of the rotation equalled wsinq where w is the angular velocity of the Earth rotating on its axis, and q is the latitude of the site of the pendulum. He demonstrated his discovery on 31 Mar 1851 for Napoleon.« |
