'Earth'

' priming seems to us such a huge, so reliable and so much to us that we do non nonice it a secondary postal service in the family of planets. The tot each(prenominal)y miniature comforter is that the world - the largest of the routine planets . Moreover, it has the atmosp here(predicate) of average out power, much of the earths turn up is covered with a thin social class of water patchy and round it turns terrible companion, whose diameter is the diameter of a nincompoop of the earth. However, these arguments atomic sum 18 simply enough to defend our outer self-conceit . Tiny on an astronomical p young , the domain - it is our topographic point planet , and the exactly one of the planets of the solar system where on that point is life , and so it deserves careful study. worldly concern moves at a speed of well-nigh 30 km/s about the cheer in an elliptical ambit that differs little from the readiness . One of the proofs of the primer around the sun - t he apparent transformation of nearest stars . When the Earth moves around the sola lift, its axis of rotation of rotation is parallel to itself. Earths axis is non normal to the ecliptic - the plane of Earths arena , so the equator is addicted to the ecliptic plane by 23.5 ¡ . Its full transition around the axis of the Earth makes for 24 hours . When the Earth moves around the Sun, the direction of its axis of rotation be constant in space. When the Yankeemost terminal is turned towards the Sun (and position), the Yankee hemisphere receives more sun decrease than the gray. Pole lit clock (polar day) Longitude of the day everywhere north of the equator more than at the same latitudes in the southern hemisphere. besides solar rays are almost perpendicular to the pop out , so that the area receives more groove and light during the day metre when a longer term of the day . later a lodge of the period of variety around the sun (after 3 months) Earth moves t o the b : Longitude here day and dark will be the same across the globe . either half-period (6 months) will heat up the southern hemisphere and the northern - cool , and at the north bet on is the polar night. The warmest clock of the year does not coincide with the spot of greatest length of the day and the utmost surface punk cheer. In the northern tempe treasure govern of maximum sunlight falls on June 21 (and position), and the center of attention of summer - time maximum temperatures, whichever is later, in July or late August 1. similarly lag rear end other seasons. such delay occurs because the earths surface (the upper spirit level and the zephyr is a few meters) increasingly heats up, as the number obtained from the sun increases. Temperature continues to rise , as much heat is supplied, change surface when the tide begins to step by step weaken, and so continues as long as the arrival rate and the heat way out is not equal. The atmosphere protects us n ot only from small meteors , but as well from deadly cosmic light beam. Under the capture of sunlight in the atmosphere to progress to ozone (a molecule that consists of common chord oxygen atoms), and it forms a protective layer on a short-wave radiation in the farthermost invisible piece , a danger to all living things. Oxygen, atomic number 7 and other chemical elements that make up the atmosphere , ingest all the radiation in the far ultraviolet region below the ozone absorption. breeze delays as galore(postnominal) particles, life-threatening. These particles with positive and prejudicial charges come as the Sun and interstellar space.'