Showing posts with label time travel. Show all posts
Showing posts with label time travel. Show all posts

Saturday, April 3, 2010

TIME TRAVEL

A science program about the possiblilty of Time Travel with Dr David Deutsch.

What remains of the killing-your-earlier-self paradox in general relativistic time travel worlds is the fact that in some cases the states on edgeless spacelike surfaces are ‘overconstrained’, so that one has less than the usual freedom in specifying conditions on such a surface, given the time-travel structure, and in some cases such states are ‘underconstrained’, so that states on edgeless space-like surfaces do not determine what happens elsewhere in the way that they usually do, given the time travel structure. There can also be mixtures of those two types of cases. The extent to which states are overconstrained and/or underconstrained in realistic models is as yet unclear, though it would be very surprising if neither obtained. The extant literature has primarily focused on the problem of overconstraint, since that, often, either is regarded as a metaphysical obstacle to the possibility time travel, or as an epistemological obstacle to the plausibility of time travel in our world. While it is true that our world would be quite different from the way we normally think it is if states were overconstrained, underconstraint seems at least as bizarre as overconstraint. Nonetheless, neither directly rules out the possibility of time travel.













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Saturday, February 27, 2010

World's First Time Machine

http://blog.rifftrax.com/wp-content/photos/Time_Machine__1960_.jpg

From: kellyneill

In this Discovery Science documentary "The First Time Machine," Physics professor Ronald Mallett, PhD reveals that he is on the brink of making time travel a reality. His book, "Time Traveler" has garnered interest from both the scientific community and the general public and funding for his program, known as The Space-time Twisting by Light (STL) project, is progressing.

Full details on the time machine project, Mallett's theories, and a list of upcoming public lectures and links to popular articles on his work can be found at the professor's University of Connecticut web page at http://www.phys.uconn.edu/~mallett/main/main.htm




Part 2: http://www.youtube.com/watch?v=mcmmPxD2BY0

Part 3: http://www.youtube.com/watch?v=hztOphFKRJI

Part 4: http://www.youtube.com/watch?v=JPk7imosxRg

Part 5: http://www.youtube.com/watch?v=t2ceTDHaGRQ

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Monday, January 11, 2010

Through Time

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Time travel in theory

Some theories, most notably special and general relativity, suggest that suitable geometries of spacetime, or specific types of motion in space, might allow time travel into the past and future if these geometries or motions are possible.[10] In technical papers, physicists generally avoid the commonplace language of "moving" or "traveling" through time ('movement' normally refers only to a change in spatial position as the time coordinate is varied), and instead discuss the possibility of closed timelike curves, which are worldlines that form closed loops in spacetime, allowing objects to return to their own past. There are known to be solutions to the equations of general relativity that describe spacetimes which contain closed timelike curves (such as Gödel spacetime), but the physical plausibility of these solutions is uncertain.

Physicists take for granted that if one were to move away from the Earth at relativistic velocities and return, more time would have passed on Earth than for the traveler, so in this sense it is accepted that relativity allows "travel into the future" (although according to relativity there is no single objective answer to how much time has 'really' passed between the departure and the return). On the other hand, many in the scientific community believe that backwards time travel is highly unlikely. Any theory which would allow time travel would require that issues of causality be resolved. The classic example of a problem involving causality is the "grandfather paradox": what if one were to go back in time and kill one's own grandfather before one's father was conceived? But some scientists believe that paradoxes can be avoided, either by appealing to the Novikov self-consistency principle or to the notion of branching parallel universes.

Watch Time Travel in Educational | View More Free Videos Online at Veoh.com

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2012 Enigma

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2012: Tragedy, transcension or just another year? David Wilcock exposes many great secrets: DNA, consciousness science, wormholes, stargate travel, sacred geometry, three-dimensional time, the Mayan Calendar and much, much more

Photo Color Correction by Pascal Schmidt

David Wilcock is a professional lecturer, filmmaker and researcher of ancient civilizations, consciousness science, and new paradigms of matter and energy. His upcoming Hollywood film CONVERGENCE unveils the proof that all life on Earth is united in a field of consciousness, which affects our minds in fascinating ways.