14 scientific facts that will force you to look at the world differently
The universe is a crazy place. Here and exploding stars, and the immortal jellyfish, and all of this has been around for 14 billion years. Before you — 14 incredible facts about the Universe in which we live. They will upend your ideas about what surrounds you.
If you expand all the DNA molecules in your body, their length will be about 54.7 per billion kilometers. This is almost 10 times greater than the distance from Earth to Pluto (5.7 billion km).
Ordinary matter is almost entirely (99.9 999 999%) is empty space. If you remove all the empty space out of our atoms, all of humanity (7 billion people) would fit in the volume of one sugar cube.
Many of the atoms of which you consist, of calcium in the bones to the iron in your blood was created in the heart of an exploding star billions of years ago.
It turns out that your body contains relics of the space since the creation of the universe. Almost all of the hydrogen atoms in your body were formed in the Big Bang about 13.7 billion years ago.
And when you set up TV channels, a small percentage of the static visible on the screen is the remnants of radiation from the Big Bang.
The light of some stars flying to the Ground forever, and admiring the starlit sky, we are actually looking into the distant past. The Hubble space telescope can see 13 billion years ago.
Forty-seven years ago, mankind took the first steps on the lunar surface. The footprints of the astronauts will remain, perhaps even in a million years. The moon has no atmosphere, so there is no wind and water, which could wash away the traces.
In the open space is silence. Absolute silence. This is because sound waves need some medium to propagate. And in space vacuum. Dark and silent vacuum.
If in the vacuum of space to touch one piece of metal to another piece of the same metal, they will merge and will together indefinitely (well, until they break).
One year on Venus lasts for 224 earth days. And one day on Venus is 243 earth days. It turns out, a day on Venus lasts longer than a year. And yet Venus is the only planet in the Solar system that orbits in the opposite direction.
The Sun has 99,86% of the total mass of the Solar system. It is so large that it can fit 1.3 million planets similar to Earth.
In the Universe about three sextillion stars. Is three with 23 zeros— 300 000 000 000 000 000 000 000. It's more than grains of sand on Earth.
When a massive star explodes, its core becomes so-called a neutron star. A neutron star is so dense that just a teaspoon of the substance of which they consist, will weigh more than mount Everest. The explosion is able to spin a neutron star up to a mind-boggling speed — up to 600 revolutions per second.
Ordinary, visible matter (such as stars and planets) is less than 5% of the Universe. The remaining 95% of the Universe is invisible dark energy (68%) and dark matter (27%). This means that we know nothing about 95% of the Universe.