for a very long time people thought that our planet has a flattened shape and lies on 3 pillars.A man can not observe its rotation, being on itself.The reason for this size.They are of great importance!Dimensions person too insignificant in relation to the size of the globe.Time went forward, the science has progressed, and with it, and people's perceptions of their own planet.What are we today?Is it true that the earth revolves around the sun and not vice versa?What other astronomical knowledge in this field have power?Everything in order.
on its axis
Today we know that the earth receives simultaneously participate in two kinds of its motion: the earth revolves around the sun and its own imaginary axis.Yes, the axis!Our planet has an imaginary line that "pierces" the surface of the earth in its two poles.Spend mental axis in the sky, and it will pass near the North Star.That is why this point always seems to us still, and the sky seemed to be spinning.We thought it was the heavens move from east to west, but note that it only seems to us!Such a move - probably because it is a reflection of the treatment of the planet - along the line.
Daily rotation lasts exactly 24 hours.In other words, for one day the globe performs one full circle on its axis.Each of the first points of the earth passes illuminated side, then - dark.But one day everything is repeated again.For us, it looks like the constant change of days and nights: morning - day - evening - morning ... If the planet does not rotate in such a way, on the side facing the light, would be eternal day, and on the other - the eternal night.Horrible!Well, that's not true!In general, a daily rotation we understand.Now let's see how many times the Earth revolves around the sun.
Sunny «dance»
That we are not visible to the naked eye.However, these things can feel the effect.We all know what is warm and cold seasons.But what is common between them and the movements of the planets?Yes, all they have in common!Earth revolves around the sun for three hundred sixty five days or one year.In addition, our globe - party and other movements.For example, with the sun, and his "colleagues" -planetami Earth moves relative to its own galaxy - the Milky Way, in turn, is moving relative to their "colleagues" - other galaxies.It is important to know that in the universe nothing is never stationary, everything flows and changes!Note that the apparent motion of our celestial body - it's just a reflection of a rotating planet.
And if the theory is correct?
Today, many people are trying to prove the opposite: they believe that not the Earth revolves around the sun, but rather a heavenly body around the globe.Some scientists say the joint motion of the Earth and the Sun, which takes place relative to each other.Perhaps, once the world's scientific minds flipped "upside down" all known scientific understanding today about the cosmos!So dot the "i" apart, and we'll know that the earth revolves around the sun (at a rate of, by the way, about 30 kilometers per second), with the full turn it makes in 365 days (or 1 year), together withthose on our planet on its axis turns per day (24 hours).
