it is believed that earth is tilted at certain angle? what is the evidence?

Question

astronomist claim that earth is tilted at certain angle and thats why weather all over the world is different.how we can verify that claim

Answer 1

The fact that the earth is tilted on its axis is what's responsible for giving us different seasons. And it's why the southern hemisphere is getting ready for winter at the same time the northern hemisphere is heading into summer. In this science update, you'll hear how that tilt got knocked into place.

Answer 2

The Earth is tilted at a 23 1/2 degree tilt giving it a perfect tilt for seasons. Earth is tilted because a magnetic tilt on an axis or an imaginary line going trough the Earth. As the Earth goes through a revolution parts of the Earth go through a change (or at least some parts of the Earth.) This Change is called seasons or a change in climate.

My reasons for saying some places of the earth is because of some of the places below the equator,excluding Antartica including mexico and some southern areas of the United States
have humid conditions all year round due to the equator. Only the northern and southern parts of the earth (Northpole,Antarctica)are cold all year round!This temperature extends to Canada and all parts of the earth in that northern area.The equator can be found on any map as 0 degrees on latitudeThe prime meridian can be found 0 degrees longitude

Changes in time are also an affect on the tilt. Due to the tilt of the Earth we have an International date line. This date line changes the time all around the world.The International Date Line is in the Pacific ocean. For example,the Philippines is a day and a few hours depending on where you are. So, Anywhere To the left of the IDL is a day ahead and anything to the right is a day behind like the USA. The IDL is cut in Greenwich Europe Making Europe a day ahead and a day behind.

Getting back to the axial tilt. Evidence of this fact is proven by a simple camping tool:a Compass. The compass always points North because the compass is a magnet which is attracted by the Axial Tilt of the North. Why not the South? because the magnetic field is stronger at the north than the south.

I'm guessing this is enough information
All this info is credited to my son who learned all of this in his 6th grade science class.

Answer 3

A lot of answers are confusing the axis with the magnetic poles. The magnetic pole and the axis of rotation could be different even if the axis of rotation were vertical with respect to the plane of the solar system.

The obvious proof is the differences in day and night during the summers and winters. If the earths axis were vertical, the days and nights would always be the same regardless of the season. Above the arctic circle the sun does not drop below the horizon during much of the summer, and does not appear above the horizon during much of the winter. This is caused by the tilt in the axis of rotation.

It's easy to see this at home. Take a ball and put a thumb tack at opposite points to represent the axis of rotation or use a globe if you have one. Use a lamp in a dark room. The lamp of course always illuminates half of the ball or globe. If the axis of rotation is vertical, the day/night periods are always equal. If you then tilt the ball or globe so the axis is at 23.47 degrees (the earths' tilt), you will see that near the poles, the length of day and night will change, depending on which way the axis is tilting in relation to the sun. The North Pole and South Pole are opposites. During the long winter night at the North Pole, the South Pole is enjoying a long summer day.

Answer 4

It's important to make sure what that angle is in respect to. In this case, the angle is measured with respect to the orbit of the earth, or even more precisely, with respect to a line perpendicular to the plane of the orbit. That the earth's axis is tilted in this way can be found by watching the path of the sun in the sky over the course of a year and comparing it to the paths that the stars take during a night. It turns out that the stars appear to be rotating around a fixed axis and that the sun moves in a path that is tilted to that axis.

This means that the sun changes its angl;e in the sky over the course of a year. It is easy to then notice that it is warmer when the sun is higher in the sky (summer) and cold when it is lower in the sky (winter). Since it is winter in the southern hemisphere when it is summer in the northern hemisphere, we know the tilt is the major factor affecting the seasons.

Answer 5

If earth is not tilt, we will experience consistently exactly the same day and night duration for all the year.
However, since earth tilt, there are a small variation in day and night duration during a year. In summer, northern hemisphere will experience a longer day than night, while in southern hemisphere night is longer than day. So does in winter.

If you have quite a spare time, you can try this at home. Try to find an earth globe (usually globe maker already made the earth in tilting position). Use torch lamp to simulate the sun and illuminate the globe. See what you will find....

Answer 6

To specify that something is tilted, you must define against what frame of reference. The rotational tilt of Earth which causes the seasons is with respect to the sun. If there were zero tilt, then the sun would always be perfectly in line with the equator.

We can easily verify this tilt by observing the location of the sun and recording it over the course of a year (or more). We simply determine at what point of the year it is the furthest north (or south), and then measure exactly how far north or south it reaches. The latitude at which the sun is directly overhead at this furthest point is the exact tilt of Earth, and we've named these latitudes the Tropic of Cancer and the Tropic of Capricorn. (Cancer because the sun is directly over the "northern tropic" in late June during the Summer Solstice, and Capricorn because the sun is directly over the "southern tropic" in late December during the Winter Solstice.)

Answer 7

The Earth's axis of rotation is tilted about 23 1/2 degrees from the plane of its orbit around the Sun. The result is that the Sun gets 47 degrees higher in the sky in the summer than it does in the winter. This has been known since prehistoric times, even before people knew that Earth orbits the Sun, since the position of the Sun in the sky is obvious to anyone looking at it and taking the trouble to notice how high it gets each day of the year.

Answer 8

The evidence includes the periodic variation in the length of day and night over the course of a year, the change in the track of the sun over the course of a year, and the changing of the Pole star over years.

Because the earth is tilted, the area exposed to the most direct rays of the sun changes as the earth moves in its orbit. During winter in the northern hemisphere, the earth, though closer to the sun, is tilted away from it. The northern hemisphere gets less direct sunlight, and thus less heat energy. The input of less heat creates colder, winter weather. At the same time, in the souther hemisphere it is summer, as they get the most direct rays of the sun.

Answer 9

Go somewhere above or below the equator and measure the angle of the sun in the sky at the same time of day during different days of the year.

If the earth is not tilted on its axis, the sun will always be in the same position in the sky at the same time of day, every day of the year.

If the earth IS tilted, the sun will be at a different place in the sky at the same time of day during different days of the year.

Living in Massachusetts, which is fairly far above the equator, i can assure you that the earth is, in fact, tilted on its axis due to observations compared with the aforementioned predictions.

Answer 10

1. Look up at night and find the North Star. For practical purposes, it stays in the same place all the time.

2. The sun appears to take paths at different angular elevations above the horizon, depending on the season.

You can explain these two facts in one of two ways.
(1) The Earth's orbital plane is tilted with respect to Earth's axis....or (2) The earth's axis is tilted with respect to it's orbital plane.

It's the same thing. Just pick your frame of reference.