why earth is more hot near equator and goes colder as you reach toward poles?

Question

hang on!
if your answer is (as we learnt in school) there are more straight rays near equator and tengestional rays of sun as you go away from it. As we know, suppose we take sun as big as size of a football then earth is less than a size of a small ball-bearing ball. so, if this is true then equal no. of rays from some part of sun should fall straight everywhere over earth. so how that is possible that equator gets more straight run rays then anywhere else? and if that is not a reason then what is!!!!!
NB: this is a real question, no funny answers please.

i got early answers revoling around the same thing. i agree with all of them when they talk about source of light as a single point. but sun is not a point. infact earth is just like a point against sun. imagine a light coming from a big wall falling on your pen held in your hand some distance away. you will find many rays and what ever you tilt the pen, you will always have some rays coming straight to the pen. i can agree if it is a matter of same size objects but here sun is 1000s time bigger then earth and i dont think this only can account for such a temperature difference. sun can not be aiming at equator of earth to deliver straight rays as it has to deliver it to whole solar system. if you think with clear idea of suns and earth's size and dimensions and distance, you will find this common belief unstanding.

Answer 1

gravity pull produced from the core shoots out a force field like thing around the earth which deflect most of the sun's rays. this force field is egg shaped and the to high points are around the poles which make less heat from the rays getting to them. even though as studied and proved the poles shift magnetic north in earth, this is actually happening right now it take a hell of a long time for this to happen. put it explains the so called global warming. and that is why the poles are melting and place like Florida are having relatively cool summers and winters right now.

Answer 2

The reason is that because the sun as a source is so far away, that by the time the light hits the earth, the rays are almost parallel to each other.

Imagine this, draw a small circle, and from the centre draw lines going out in all directions, you will notice that two lines next to each other grow further appart the further they get from the circle. If you kept going on one line so far and drew a line so close to the other one, the lines would be almost (but never quite) parallel.

So the rays at the top of the earth will be parallel to the rays at the bottom.

Also the pictures of the solar system you see, are not to scale because they always show a very large sun. In reality the earth is more than 100 suns away if put back to back. So the large distance makes the size of the sun irrelevant.

By the way, once you get out very far, the sun as a source of energy becomes less important, because of the luminosity drops off drastically further from mars.

Answer 3

however, there are more straight rays near the equator region than at the poles, not because of the sun, but because of the position and movement of the earth, or, more precisely, the way the earth is facing the solar rays.

this is visible in the 2 hemispheres through the difference of the solar "orbit" on the sky between summer and winter. usually in the summer, the sun has a longer trajectory on the sky, and at approx. noon, is above our heads (i.e the rays are perpendicular to that place). in the winter, the "orbit" of the sun is much shorter, and at around noon, it is relatively low on the horizon (i.e the the rays are tangential).

hope this helps

Answer 4

the reason why countries near the equator is hotter than countries nar the poles is mainly because of the curvature of the earth and the angle of the sun. the earth is curved on axis whick makes the equator straight ahead to the sun. the sun heats at an angle which equals the angle of the equator.

Answer 5

y dont u make an experiment by using an earth modul then place any source of light for example mentol then exposed the light to the surface of the earth modul then record the temperature at different site of the ball then make ur own hypothesis

Answer 6

Because the earth is spherical, then, the middle part of the earth is the hottest because it gets near the sun

It is the other way around for the N. POLE and S. POLE

Answer 7

the energy will be dispersed and less will be able to get to the polar points of the earths when it is tilted away from the sun.