What is an osculm?

What is the driving force which causes the Earth's axis to wobble in its rotation? How long is a year really? How the microscope change the appearance of the image in the microscope? What day of the week was August 16 1976? Who was president when first man stepped on the moon? Why did farmers rotate crops in the field? Who will play gianna in new moon? What is the altitude of keystone Colorado? What inspired Sally Ride to be an astronaut? The point Earth is farthest away from the Moon in its orbit is called what? Can the moon float on water? What are problems that face solar power? Why does your stomach distend? How long are harp strings? Do tornadoes most likey form between 3pm and 9pm? Where an object is located in space called? Which planets rotate from east to west? What do you call something that lives on Mars? What will happen to a person with out a space suit in space? Why does moon change shape as it orbits the earth?