Earth's wobbles? -urgent- D: ?

Question

So i need to do an essay on global warming and how the sun is related and stuff.

But i would like to know what does earth's wobbles mean?

like is it how earth tilts and orbits around the sun?

This is urgent please help <//3

Answer 1

The Earth&#039;s &#039;wobble&#039; is known as precession. If you look at a spinning top, you will see that its axis of rotation slowly describes a circle. The circle gets bigger and bigger until eventually, the top falls over. This slow circular motion is called precession. In the case of the Earth, the axis takes 26,000 years to complete one circle. There are also several other long-period variations in the Earth&#039;s orientation and orbit. The Earth&#039;s equator varies between an angle of 21 and 24 degrees to the plane of its orbit. Also, the shape of the orbit changes, becoming less elliptical then more elliptical.

Various combinations of these changes have been proposed as reasons for ice ages and other global climate changes in the past. These changes are known as Milankovitch cycles, after the person who proposed this theory. There is a discussion of the theory at http://en.wikipedia.org/wiki/Milankovitc...

Answer 2

I think you&#039;re referring to the slight wobble of a star cause by a revolving planet around it!

The Earth&#039;s orbit is elliptical!

Answer 3

The &#039;wobble&#039; isn&#039;t something that is like, all of a sudden the earth bounces and everything gets thrown around.  It&#039;s a constant thing that&#039;s always happening.  It&#039;s happening right now.  All it is, it the earth sways around so the north pole points at different stars.

Like this - http://upload.wikimedia.org/wikipedia/co...

Answer 4

The Earth&#039;s axis is tilted, but the rotation wobbles.  You need to do research on the Milankavich Cycles for answers on climate change related to the Earth&#039;s orbit.  You may also want to do research on Sunspot cycles related to temperature.  Historically when the sun is active it is warm and when it is less active it is cool.

Hope this helps.

Answer 5

The Earth does wobble slightly, light a top when it spins.  Right now our North Star is Polaris, because that&#039;s the closest star to where our north points.  however, in a thousand years or so, (not pos. on the time ATM) it will be pointing in a different direction and we&#039;ll have a new &#039;North Star&#039;.  eventually, it will wobble back to Polaris after going through  6 or 7 &#039;north stars&#039;

it doesn&#039;t really have anything to do with the tilt or orbit.

Answer 6

when the black planet passed by earth 3598 years ago. its gravitational forces pulled the north and south pole on and caused tides to collapse and which put earth on its wobble.

Answer 7

kind of iffy on what wobbles means but...

yes the earth is tilted it spins around an axis that is not perpendicular to the sun, this gives us the seasons and the earth&#039;s tilt moves around as we go around the sun

but also... the earth wobbles around in a circle mainly due to the moon..you can see evidence for that when the tides move in and out (following the moon)

stars wobble too from their planets, mainly big ones... the sun wobbles around mainly because of jupiter - this is how we can find some planets around other stars.