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Georg Rienmann
Mathematicians dating back to Georg Rienmann have studied the properties of multiple connected spaces in which different regions of space and time are spliced together. -
Begining of mass group interests
Ever since H. G. Wells' famous novel The Time Machine people have grown increasingly intrigued by the idea of traveling through time. In the book, the protagonist uses a "black and polished brass" time machine to gain mechanical control over time as well as return to the present to bring back his story and assess the consequences of the present on the future. -
Einstein's Theory on Time
Einstein thought that time was more like a river than a straight line. He said it wrapped around planets speeding up and slowing down in different places in the galaxy. To Einstein, time is the "fourth dimension". Space is described as a three-dimensional arena which provides a traveller with coordinates, such as length, width, and height, showing location. Time provides another coordinate-direction although conventionally, it only moves forward. -
Theory #2
One possibility could be to go faster than light, which travels at 186,282 mps in a vacuum. Einstein's equations show that an object at the speed of light would have both infinite mass and a length of zero. This seems physically impossible, although some scientists say it might be done. The equations also provided a linked possibility that would be to create wormholes between points in space-time. However, they would collapse very quickly and would only be suitable for very small particles. -
Einstein's Theory
Time slows down and speeds up depending on how fast you move relative to something else. Approaching the speed of light, a person inside a spaceship would age much slower than his twin at home. One theory is that if you went back in time and, for example, stop Lincoln from dieing, when you went back you nothing would've changed in your timeline. Instead it would create an alternate universe in which Lincoln wasn't assassinated and to see the affects you would have to find a way to travel there. -
Update of Einstein's Theory
Erza Newman, Theodore Unti, and Louis Tamburino, discovered a new solution to Einstein's equations. They showed that the topology of the universe might be compared to living on a spiral staircase, and if you move 360 degrees around the staircase we do not arrive at the same point at which we started and that time never stays the same, it is always moving, never leaving you in the same spot. -
Past Attempt
Three physicists, Kip Thorne, Michael Morris, and Ulvi Yurtsever published the first serious proposal for a time machine in one of the most distinguished publications in the world, Physical Review Letter. -
Theory #3
One suggestion was to build a cylinder of "exotic matter." The time traveler stands in the center of the cylinder. Then the cylinder warps space and time surrounding it, thus creating a wormhole that opens into a different space-time. The traveler experiences no more than one gram of gravitational stress during the process. -
Problems
The main problem of time travel is energy. A time machine needs insurmountable amounts of energy. One either has to harness the power of a star or to find exotic matter which falls up rather than down. -
Problems with theory #3
A team of scientists makes it clear that the above should in fact violate a simple concept in physics, AWEC, which states that objects have positive and negative energy and vacuum's have zero energy. In order to achieve time travel we must create negative energy. Problems associated with achieving the above could possibly be solved by a hyper space theory which integrates all the known forces of nature, and which assigns ten dimensions to the universe.
