The solar system we live in is a place ridden with crises. tiffany jewelry , Give You A Inspired Life About 4,400 million years ago, an object as size as the Mars hit the newly formed the Earth, and the pieces ultimately formed the moon. 6500 million years ago, a huge asteroid clash caused the extinction of dinosaurs, in addition to birds, there seemed no other surviving relatives of dinosaurs. 12900 years ago, a large-scale meteor shower caused by the collapse debris of comets appeared on the icy field of the North America.How Can You Take no Notice Shining ugg classic tall
The sudden disaster may directly lead to the extinction of the mammoth and other large mammals, and the disappearance of the ancient Indian Clovis civilization. Kiss of foreign objects and us had been always together; just the scales were in great diversity. At 7:14 on the June 30, 1908, an asteroid or comet exploded over Siberia and large tracts of forests are radially pulled down. People living in London could read newspaper at night without light. October 9, 1992, a meteor brighter than the full moon flied across the sky and finally hit a Chevrolet car. In July 1994, Shoemaker - Levy 9 comet shredded by Jupiter's gravity like a comet train crashed straight to Jupiter, left scars on Jupiter's "face", of which the largest scar can put the entire earth inside. September 2007, a meteor crossed the sky accompanied by loud noise and fell down in a village near Peru, which left a 4.5 meter deep, 13 meter-wide pit. October 7, 2008, an asteroid in size of 2 to 5 meters diameter exploded over Sudan within 20 hours after being discovered.
Now scientists have reached consensus that the impact of the asteroids with 1 km in diameter can cause a global catastrophe, whose chain reactions may lead to human destruction. However, the scientists have not yet reached a consensus that how big exactly the rate that an asteroid with 1 km in diameter knocks with the Earth is. It is estimated that it may happen in every 100000 years, and still others say every 500000 years or even every three million years. Although the great destructive power can spread worldwide, but according to all estimates that the impacts are extremely rare. Crash like the Tunguska event is more common. It is estimated that the frequency of its occurrence is every 1,000 years. Of course, some people think it would be more frequent. The scale of the disaster caused by the impact is partly. like the explosion of atomic booms. It is like 1000 thousands tons of TNT or 500 atomic booms. However, even smaller crash is destructive.
Although these clashes are chilling regardless of sizes, they are the only [heavenly" disaster which can be prevented by current technology at present. The source is the external asteroids or comets, but we can not exactly know the numbers of small heaven bodies between 100 meters to several kilometers. On August 5, 2009, the known near-earth asteroid reached 6244, of which the largest diameter was 32 km. But here exists a rather troublesome problem; some small near-Earth objects can be found only when they are closest to the Earth. These objects are usually several hundred meters to 1 km in diameter, which can destroy a city or cause serious ecological crisis. But now we only know a small part of them. They are very dark, and flew only a few days before reaching the earth can be found; because they will become apparent relative to the movement of the stars in the sky. So if there is an asteroid will hit Earth within a few days, how should we save ourselves?
In fact, we can make an accurate prediction on place and time of collision. Take the collision in Sudan on October 7, 2008 as an example, there was a small error of prediction, only several kilometers and a few seconds differences. But if the precious information of the crash location have not released, the best choice for you was find a fuel-efficient car and fill it up, then head north as far as possible. The reason is that the district of the ecliptic plane is more easily struck by the asteroid compared with the other district for the orbit of the asteroid of the solar system is basically near the ecliptic plane. Of course, this is only a speculation based on reasoning. It is noteworthy that scattering family members and going to various different areas can maximize the chances of survive. At the same time never stay near the sea, as the tsunami caused by impact will sweep away everything.
Scientists are studying a variety of ways to change the track of the offender planets, although some are not practical in present view, the development of technology often goes far beyond our imagination. Most importantly, in this war with disasters, we still have enough time. Although the cause of hit is really serious, it is rare. At least, it won't happen tomorrow.