When formed the Crab Nebula?
In 1504, Chinese astronomers observed a massive explosion in the sky
who could not explain. Today we know that this event space is
corresponds with the birth of a supernova, which has been called the Crab Nebula. Located at 4,000 light years from Earth, it expands at a rate of 125 million kilometers.
When the aurochs became extinct?
The cattle are supposed to be descended from the aurochs, a wild bull
jet-black, six feet high provided long, twisted horns
forward. Aurochs, the scientific name Bos primigenius, were systematically hunted down and eliminated
by man and replaced by his descendants
home. The last that remained were a herd in the forests of Poland
, but these cattle dwindled until in 1627 died on the banks of the Vistula the last copies.
"When the first newspaper?
The first newspaper came to light in the Belgian city of Antwerp in 1605. Titled
Nieuwe Tijdingen, latest news, he realized the battle of Ecker in which the troops of the Marquis de Spinola defeated the Nassau Mauritius. This new system will give news became popular, and publishers of Nieuwe Tijdingen decided in 1617 it started to go regularly. At the same time the appearance of newspapers in Hamburg, Vienna, Berlin, Augsburg and other central European cities. After them came the relations and newsletters. Finally, we must not forget that in fact the origins of newspapers dating back to the reign of Julius Caesar. Conceived in the year 59 a. C., the minutes reflected the day's top stories daily.
When does life on our planet?
If we refer only to the fossil evidence, we can say that the first organisms
appeared in the Precambrian period, almost 4,000 million years, about 600 million years after Earth was formed.
Paleontologists have found microscopic fossils of bacteria-like current of up to 3,500 million years old in South Africa and Western Australia. Even the most archaic strata of our planet, which are located in Isua, Greenland
, which are older than 3,800 million years, contain traces of biological activity
. All this suggests that life appeared on Earth very soon
.
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