Tectonic plates – Moving very slowly
Tectonic plates – The Earth looks fixed, but the development of our planet is still not completed,
and the earth is still working. The main reason is the movement of tectonic plates.
Plates are moving very slowly, a few centimeters per year. If will move up rapidly,
there is an earthquake. In the history of geological face of the Earth has changed several times.
With Pangea formed several continents we know today. The plates can move in several directions.
They can glide along each other, and then the friction releases huge amounts of energy in the
form of earthquakes. When the plates glide against each other, then either one plate thrusts
under the second or push against each other, causing uplift – this is how the Himalayas,
the highest mountains in the world. The plates can also move away from each other,
such as plates in the African Great Rift Valley.
Moonless development – Earth without Moon
Moonless development – Earth without Moon – Simulations 4 billion years of
development of the Earth without the presence of the Moon. Were performed in the
Research Center of NASA in Moffett Field, California by Jack Lisauer. In the developed model,
the maximum angle at which leaned to the axis of the Earth, turned out to be much smaller
than assumed earlier studies. The conclusions of the study were: Earth would be the Earth,
even without his extremely large satellite.
Stars turnover – Speed of stars rotation
Stars turnover – Speed of stars rotation – The Sun rotates at the equator at a speed of 2 km / s.
Astronomers have discovered that the star of the Tarantula Nebula – VFTS102,
rotates at a record speed of 600 km/s.
Molecules from space – Primary gas created shortly after Big Bang
Molecules from space – Primary gas created shortly after Big Bang – Has been confirmed the
hypothesis about the origin of molecules from space. The researchers were able to discover
the so-called. Primary gas, which was created shortly after the Big Bang, it consists of hydrogen
and its heavier isotope deuterium. This finding confirms that in the Big Bang were created only the
lightest chemical elements, hydrogen and helium. Heavier elements appeared only after 100 Mln years.
Brussels tunnel – Experiment with photocatalysis
Brussels tunnel – Experiment with photocatalysis – In 09.2011. European experts began their
experiment in the Brussels tunnel, through which passes every day 25 thousand. cars.
100 meter length of building was covered with cement with titanium dioxide TiO2,
which is the source of a chemical process called photocatalysis, acts as a catalyst driven by
solar radiation (UV).
Yuri Alekseyevich Gagarin – Soviet cosmonaut
Yuri Alekseyevich Gagarin – Soviet cosmonaut in space – In 9. 03. 1934 Was born
the Soviet cosmonaut Yuri Gagarin, which in 12. 04. 1961 Was the first man flew into space.
He started from the Baikonur cosmodrome piloting the spacecraft Vostok 1.
After 108 minutes of flight landed by parachute in the vicinity of Saratov.
He died 27. 03. 1968. In a plane crash.
Plesetsk cosmodrome accident
Plesetsk cosmodrome accident – Explosion of spaceship Vostok – In 18. 03. 1980 on
the Soviet Plesetsk cosmodrome, just before the start of the explosion occurred spaceship Vostok 2M.
The accident killed 50 people.
Seikan railway tunnel – Honshu and Hokkaido connection
Seikan railway tunnel – Honshu and Hokkaido connection – In 13. 03. 1988 was opened Seikan
rail tunnel linking the Japanese islands of Honshu and Hokkaido. The length of the tunnel is 53.84 km
(more than 23 km is under the sea floor). It is the world’s longest undersea railway tunnel.
Galileo Galilei – Philosopher, physicist, astronomer
Galileo Galilei – In 15.02.1642 was born Italian philosopher, physicist and astronomer Galileo.
Developer basics of modern physics. He confirmed the heliocentric theory of Copernicus.
In 07.01.1610 he discovered the four largest moons of Jupiter, later named in his honor.