Free Documentary Online | National Geographic – Time Travel – The THEORY

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Genre(s): Science

Operated by the 2nd Space Operations Squadron in Colorado, the Global Positioning System (GPS) is the world’s only global utility and the largest military satellite constellation.
One of the world’s largest and most respected centers for scientific research is CERN, the European Organization for Nuclear Research. Its goal is fundamental physics, learning what the universe is made of and how it all works.
In addition to the three-dimensional world we live in, we also live in the fourth dimension of time. In fact, the 4th dimension of time is so interwoven with the other three dimensions of space, that physicists now have one name for the four dimensions altogether: space-time.
Black holes are believed to form from stars or other massive objects if and when they collapse from their own gravity to form an object whose density is infinite — in other words, a singularity.
The gravitational pull of a black hole stretches and warps space-time around it to an incredibly deep cone-shaped hole. Because the gravity of the black hole is so intense it drastically slows down time.
The speed of light is 186,000 miles per second. Nothing travels faster than the speed of light, which acts as a cosmic speed limit.
Chandra X-Ray Observatory is located 200 times higher than the Hubble Telescope and provides scientists with new data on black holes by observing particles before they fall into a black hole. At 45 feet long, it is the largest satellite the shuttle has ever launched.
Chandra X-Ray Observatory sends back x-ray images ten times sharper than the best previous x-ray telescope. That’s the equivalent of reading a stop sign from twelve miles away.

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