What evidence shows that the earth's axis is tilted relative to its yearly orbit around the sun?

Answer 1

The assumption of rotation of the earth results in the simplest explanation

for each of the following:

-- Coriolis effect (rotation of high- and low-pressure weather systems)

-- apparent east-to-west motion of every astronomical object; sun, moon, planets, stars, etc.

-- rotation of the Foucault pendulum

-- intensity of meteor showers after local midnight vs. before local midnight

Answer 2

The changing angle of sunlight throughout the year, which causes the seasons, is direct evidence of the Earth's axial tilt. This tilt also results in the occurrence of solstices and equinoxes as the Earth orbits the sun. Additionally, the consistent patterns of daylight and darkness over a 24-hour period at different latitudes provide further proof of the Earth's tilted axis.

Answer 3

All the stars seem to move around the Earth. This is a reflection of Earth's rotation. The only alternative explanation is that galaxies that are millions of light-years away move, at a tremendous speed, around the Earth once every 23h56m. This doesn't quite fit in current scientific theories. How could they move faster than light? Why would this movement be synchronized?

Answer 4

Simply put, we have days and nights. If the earth wasn't "rotating," then half of the earth would always be in the sun and the other half in darkness.

However, we can explain that by insisting that the entire universe is turning around the Earth, if we really feel like being obstinate.

The evidence that it's actually the Earth rotating comes mainly in two forms: the Coriolis effect (the large-scale movement of winds and ocean currents is trivial to explain if we assume the Earth is turning, very difficult to explain otherwise) and the Foucault Pendulum.

A Foucault Pendulum is a pendulum arranged in such a way that it can swing in any direction... it doesn't have a preferred axis or plane of motion (this is what you get if you just fix a string at the top). It helps if it's large and heavy enough that air currents don't have much effect on it and it will swing for a long time. You set it swinging straight back and forth in any desired direction, without giving it any sideways motion. Over the course of a day, the orientation of the swing will make a complete circle relative to the pendulum's surroundings. In actuality, the pendulum is still swinging the same direction, but the Earth has made a complete turn around it.

If you live near Washington DC, there's a large Foucault Pendulum in the Smithsonian (or at least there used to be). It's set up on a balcony and there are targets that it hits over the course of the day and knocks over, so you can see evidence of its motion since the targets were reset. I'm sure there are others elsewhere, but this is the largest one I personally know of.

Answer 5

There is none. Tycho Brahe was right, the other eight planets orbit the sun but the sun and moon orbit the earth, once a day. The earth is fixed and stationary. If it spun at 1000 mph at the equator; we would all be thrown off it. There have been many experiments carried out to try and prove the rotation of the earth, most notably the Michelson - Morley series, and they have all failed to prove such. Also, if the earth orbited the sun then there would be a transit of Venus every 19 months.

Answer 6

Our movement in refernce to that of the sky's. Example would be time lapse photogarphy of the sky.

If you connected the dots/stars in that area of the sky after a period of day you would see arc's and lines thus proving two thing's. full ciricles are only possible if you look at one of the poles and see the stars closest to it appear not to move. it helps to live above either of the tropics on either heimisphere.

A: the earth is round.

B: the earth is spining. (if someone says that we are the center of the univ. and everything moves around us. explain the same concept above but over a year to find out we move around the sun. and then over a few decades to find we move with our arm of the milkyway.)

the Best place to observe the earth rotating in the northern heim. is to note the movement of the big dipper to the north star. Draw it over a nite, every hour on the hour. The longer your night/dark time the better the results.

Answer 7

The first person who had experimental evidence for this was the astronomer F.W. Bessel who in 1838 was able to measure the parallax of a nearby star. This showed that the earth was at a different place, relative to the star, in June than it was in January. And geometry showed that the two places were on opposite sides of the sun. More parallax measurements since his time have confirmed that the earth follows a closed path around the sun.

Answer 8

The length of time required for a complete circle to form along a given star trail is the length of the earth's period or rotation. Additionally, the place in the sky that is the apparent center of all the star trail circles is the place where the earth's axis of rotation is pointing (either north or south).

Answer 9

The earth is tilted about 23 degrees 26 minutes. Or, 23 1/2 degrees on its axis.

The earth rotates west to east, and if you look down at the earth from the North pole, it will be rotating counter clockwise. if you look up at the earth from the south pole, then the earth will be rotating clockwise.

Answer 10

All the stars seem to move around the Earth. This is a reflection of Earth's rotation. The only alternative explanation is that galaxies that are millions of light-years away move, at a tremendous speed, around the Earth once every 23h56m. This doesn't quite fit in current scientific theories. How could they move faster than light? Why would this movement be synchronized?

All the stars seem to move around the Earth. This is a reflection of Earth's rotation. The only alternative explanation is that galaxies that are millions of light-years away move, at a tremendous speed, around the Earth once every 23h56m. This doesn't quite fit in current scientific theories. How could they move faster than light? Why would this movement be synchronized?

All the stars seem to move around the Earth. This is a reflection of Earth's rotation. The only alternative explanation is that galaxies that are millions of light-years away move, at a tremendous speed, around the Earth once every 23h56m. This doesn't quite fit in current scientific theories. How could they move faster than light? Why would this movement be synchronized?

All the stars seem to move around the Earth. This is a reflection of Earth's rotation. The only alternative explanation is that galaxies that are millions of light-years away move, at a tremendous speed, around the Earth once every 23h56m. This doesn't quite fit in current scientific theories. How could they move faster than light? Why would this movement be synchronized?