WHY on an axis?
2006-12-03 16:23:16 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
momentum given at formation
in some question i tried to ask for a theoretical relation between time dilettation of a rotating mass on its border in relation to its center creating an effect, just out of curiosity
i tried that with a gyro-wheel and its strong forces on its axis holding it in position.
concept of relativity may causing the effect
in mind i created a picture with a kind of other brane being in relation to that causing an effect just out of this time difference
D'oh
in some rude way i was taught that ...
and whenever a mass rotates it has a center and the center get a label on it naming it axis.
2006-12-04 10:58:10 · answer #1 · answered by blondnirvana 5 · 0⤊ 0⤋
The Earth has been spinning since the beginning of the Solar System, when it was formed. Since it is already spinning, it will continue until something stops it. Something like a pitcher throwing a curve ball, the intitial enertial spin has kept us going into the rotation. The probability of a 'dead center' pitch with no spin is astronomical.
Trivia: The rotational speed of the Earth depends on where you are. At the equator, the speed is about 1670 km/hr, or 1070 mi/hr. To find the rotational speed where you live, take the cosine of your latitude, and multiply it by the speed at the equator. For example, the speed at a latitude of 60 degrees, the speed would be cos(60)x1670=835km/hr
2006-12-03 18:11:37 · answer #2 · answered by Its not me Its u 7 · 0⤊ 0⤋
For the earth to randomly spin in all directions it would require some outside force to make it do so. The axis does precess so it's not the same orientation all the time. If it were to suddenly spin north-south, something would have to move the entire mass of the earth in that direction, it's own inertia wouldn't be enough.
2006-12-03 16:53:48 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The Earth spins on its axis because of conservation of angular momentum. The classic example of this is a figure skater. When a figure skater pulls in her arms, she spins faster. The Earth formed when gas left over from making the Sun condensed into the planets. As this gas cooled and condensed, it started to spin faster. Now that it is spinning (and not condensing any more), it will keep spinning at a steady rate unless something stops it.
2006-12-03 16:37:49 · answer #4 · answered by amlandatta4u 1 · 0⤊ 0⤋
If you are literally asking why it spins on an axis, all rotating bodies by definition have an axis or imaginary line around which they rotate.
2006-12-03 16:43:10 · answer #5 · answered by ZeedoT 3 · 1⤊ 0⤋
because the world is symmetrical... axis...= a straight line around which a geometric figure or three-dimensional object is symmetrical
2006-12-04 16:30:42 · answer #6 · answered by Anonymous · 0⤊ 0⤋
the laws of gravity
2006-12-03 16:25:57 · answer #7 · answered by Anonymous · 0⤊ 0⤋
because god made it that way haha
actually, i think gravity does.
2006-12-03 16:25:37 · answer #8 · answered by ryrysofly11 3 · 0⤊ 2⤋