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Puzzle: Ice Ages! Occur with a period of ~ 250 million yr Cycles of glaciation within the ice age occur with a period of 40,000 yr Most recent ice age began ~ 3 million yr…

Documents Physics 218: Mechanics

Physics 218: Mechanics Instructor: Dr. Tatiana Erukhimova Lectures 35,36 An ant of mass m is standing at the center of a massless rod of length l. The rod is pivoted at one…

Documents Gyroscope. What causes the seasons? 1.Seasons are NOT caused by varying distances from the Earth to....

Gyroscope What causes the seasons? Seasons are NOT caused by varying distances from the Earth to the Sun The primary cause of seasons is the 23.5 degree tilt of the Earth's…