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.
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.
Measuring asteroids – Shape and size
Measuring asteroids – Shape and size – French scientists from the Observatoire de la Cote d’Azur have developed a new way of measuring the shape and size of asteroids. They used an interferometer constructed of 2 VLT telescopes, with diameters of 8.2 m. To measure the asteroid Barbara. The results indicate that the asteroid is composed of two parts with a diameter of 37 and 21 km. Apart from each other 24 km.
Provided solar eclipse – Made by Thales of Miletus
Provided solar eclipse – Made by Thales of Miletus – In 28.05.585 B.C. It was first provided solar eclipse. The calculations made by Thales of Miletus, a Greek philosopher, mathematician and astronomer. The creator of the foundations of science and European philosophy. He created the first rational theory of nature.
Nicolaus Copernicus – Heliocentric vision of universe
Nicolaus Copernicus (1473 – 24.05.1543) – heliocentric vision of universe – Astronomer, mathematician, lawyer and economist. He discovered the variability of the eccentric motion of the Earth and solar zenith with respect to the fixed stars. In his work “On the Revolutions of the Heavenly Spheres“ he described the heliocentric vision of the universe. He published a treatise monetary.
Carl Friedrich Gauss – Mathematician, physicist, astronomer
Carl Friedrich Gauss – Mathematician, physicist, astronomer – In 02.23.1855 died German
mathematician, physicist and astronomer Carl F. Gauss (born in 1777). One of the founders of
non-Euclidean geometry. He introduced the concepts of the optical axis of the lens, focal length,
focus and center of the lens.
Earth larger compared Mars – Red Planet very small
Earth larger compared Mars – The Red Planet is very small compared to the Earth – is only one-tenth its mass. 15% of the volume and half the size. It is a mystery, because according to the traditional theory of planet formation distribution of the material in the protoplanetary disk (the disk around the star where planets are formed) should be equal. This would mean that Mars should be like Venus and Earth. Why not? In the region of our solar system, which was built had to be relatively little material.
It is possible that this was due to the migration of Jupiter and Saturn, which astronomers suspect is that at the beginning of its history, went towards the sun. To then return to their orbits, sweeping the road dust from orbit forming a Mars. The new theory does not imply interference gas giants, scientists say Mars began to form near the present orbit of the Earth. But then gravitational forces pushed the go further, where there was a lower density of the protoplanetary disk.
Gravity waves – Strongly shocked the scientists
Gravity waves – 14 September 2015 Recorded wave, which strongly shook the scientific community. The resulting “puckering up” space after the collision of two black holes, each having a weight of approx. 30 times greater than the sun. The existence of this phenomenon over 100 years ago predicted by Albert Einstein in the general theory of relativity. His theory was that the gravitational waves produced by massive accelerating objects. At the same time they can not be directly detected, because they are very small. Calculations showed that the change in gravitational issued by two orbiting black holes themselves would extend the line with a length of about a million kilometers distance smaller than the size of an atom.
Astronomers have for decades sought evidence of the existence of gravitational waves not only to confirm the theory of relativity, which began the modern era of research the origin and development of space, but also in order to test the hypothesis of cosmological inflation of the 80s.