5 unknown facts from the life of Konstantin Eduardovich Tsiolkovsky
On September 19, 1935 in Kaluga passed away the great Russian inventor Konstantin Tsiolkovsky . Exactly one year later there was opened house-Museum of scientist-taught and a pioneer of cosmonautics, whose life with her careful study expands like the universe.
1. Opponent of Einstein, an admirer of Lenin
However, the Tsiolkovsky-the theory of expansion of the universe was denied, as he denied the theory of relativity . Konstantin Eduardovich did not agree with Einstein that the universe is limited in size to two hundred million light years. According to Tsiolkovsky, the claim is as absurd as to assert that in the cross section of the universe equals one millimeter. Continue reading
Inside the comet 67P/Churyumov — Gerasimenko there are no large voids. The mission of “Rosetta” the European space Agency made measurements that clearly demonstrated and solved the old mystery. Comets are icy debris left over from the formation of the planets 4.6 billion years ago. Spacecraft have visited a total of eight comets, and through these missions we pulled a picture of the basic properties of these space-time capsules. On some questions the answers were found, others appeared.
Comets, as we know, consist of a mixture of ice and dust, and if there were compact, gravity superior to water. However, previous measurements have shown that some of them have very low density, much lower than water ice. Low density means that the comet must be extremely porous.
But what is this porosity: due to large voids in the subsurface of the comet, or due to a more homogeneous structure with low density? Continue reading
Comparative sizes of some well-known space objects
Surely everyone at least once in my life come across another list of natural wonders, which lists the highest mountain, the longest river, the driest and the wettest regions of the Earth and so on. Such records are impressive, but they fade tightly in comparison with the sizes of space objects. Here’s to them we will now see.
Mercury is the smallest planet of terrestrial group. The radius of mercury is 2439,7 + 1,0 km 0,055 Mass of the planet earth. Area 0,147 earth.
Mars is superior in size only to the mercury. The mass of the planet equal to 10.7% of the mass of the Earth. Amount equal to 0.15 volume of the Earth.
Venus is closest to Earth on the indicators. The orbital period of 224.7 earth days. Amount equal 0,857 earth. Weight-0,815 earth.
The ground – fourth in the list of largest after mercury.
Neptune – mass Neptune bigger than Earth at 17.2 times. Continue reading