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Time Machine

Remind Me Thursday September 24 11A Thursday September 24 10A Thursday September 24 9A Thursday September 24 8A Thursday September 24 7A Thursday September 24 5A

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OverviewOverviewVideoVideoPhotosPhotosTime TravelTime TravelFactsFacts

Time Machine

Is time travel possible? It was long relegated to the realm of science fiction, but some scientists now believe that time travel is not only possible but inevitable.

Time Machine , Ronald Mallett and Time Travel , Time travel theorist asks, What if we could send scientific information through time? Medical information -- a cure for AIDS?

Time Machine , Experiments with Speed , Scientists at CERN work at the world's largest particle accelerator, asking the question, is time travel not only possible, but inevitable?

Time Machine , Gravity, Black Holes and Cosmic Strings , Stephen Hawking's theory of black hole and Richard Gott's theory of cosmic strings give hope to those seeking a route to time travel.

Time Machine,Dr Michio Kaku at the top of the Empire State Building explaining that time is the 4th dimension.

Time Machine,Professor Ron Mallett reveals the equation behind his time machine.

Time Machine,Professor Paul Davies explains wormholes using an anology with an apple.

Time Machine,Professor Jim Al-Khalili explains the speed of light and how speed affects time.

Time Machine,Professor Ron Mallett talks about how H G Well's "Time Machine" inspired his life and work.

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Lights representing the National Geographic Channel show Naked Science: Time Machine

TRAVELING THROUGH TIME

Could this science fiction idea turn into reality? Find out what's behind the case for time travel.

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.

Black Holes >>

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