What makes the Earth spin on itself?and why it no spin straight?

Question

Its spining at a 23.5 degree angle relative to the ecliptic.does it not? its no straight?

Answer 1

I saw somthing about this on the discovery channel. The moon is responsible. As it orbits the earth is pulls the ocean with it. When the tides crash into the the land as the moon pulls it forward it keeps it spinning. Without the moon life would be very differant here on earth.

Answer 2

The Earth spins about it's axis because of it's natural momentum toward that particular direction. There is nothing to stop it from spinning that way, so it will continue indefinitely, until something large smashes into the surface and transfers it's momentum causing the Earth to spin at a different angle.
The axis tilts at varying degrees throughout it's revolution about the sun because of massive gravitational torque, mainly from the sun, and causes the poles to "wobble".
The Earth is actually going in a straight line, but the sun is pulling down on it, causing an elliptical orbit. Kinda like spinning something connected to a string above your head.

Also did you know the Moon pulls the entire ocean away from the top and toward the bottom of the Earth? Thats why we have High tides at night and low tides during the day.

Answer 3

A season is one of the four periods of the year including spring, summer, autumn, and winter. Seasons are defined in two ways. Climatic seasons reflect changes in temperature, weather, and the length of daylight. The length of climatic seasons varies, for example at high northern latitudes winter is relatively long and summer is relatively short.
The Precession of the Earth's Axis
The Earth's axis rotates (precesses) just as a spinning top does. The period of precession is about 26,000 years.

Therefore, the North Celestial Pole will not always be point towards the same starfield.

Precession is caused by the gravitational pull of the Sun and the Moon on the Earth.



Summer in the Southern Hemisphere,
winter in the Northern Hemisphere

Astronomical seasons are defined by the position of the Sun with respect to the Earth. Because the Earth’s rotational axis is tilted 23.50, the overhead position of the Sun changes throughout the year. The Sun appears to migrate more overhead in summer, and less so in winter. For the Northern hemisphere, the astronomical summer begins on the summer solstice, which is the day the Sun reaches its most northern, most overhead position. As the Sun moves back south, it comes directly over the equator. This marks the autumnal equinox, or the start of astronomical autumn. When the Sun reaches its southernmost point below the equator, it is the winter solstice, or the start of the winter season. Finally, as the Sun moves back north, it again crosses the equator. This is the vernal equinox, and the start of spring.

The climatic seasons correspond to the astronomical seasons because the Northern hemisphere is warmed when it is close to the summer solstice, because the Sun is more directly overhead. Likewise, the Northern Hemisphere grows cool as the Sun moves south, and the seasons transition through fall and into winter.

Answer 4

Conservation of angular momentum.

Answer 5

What mean "spin straight"???


Doug