time travel (journey beyond time)
TRANSCRIPT
Journey beyond
‘TIME’
Theory of GENERAL RELATIVITY1. Equivalence Principal:Inertial Mass
and Gravitational Mass are the same thing.
2. Light always follows Geodesics.(Geodesics are the shortest path between any two points on any surface.
3. Locally SPACETIME IS flat.4. Universally SPACETIME is curved by
massive objects
Space Time
Theory of SPECIAL RELATIVITY
1. Space and time form 4-D Continuum.2. The laws of physics are the same in
any inertial frame, regardless of position or velocity.
3. The speed of light c is a universal constant, the same in any inertial frame.
TIME DILATION
In Special relativity, clocks that are moving run slower, according to a stationary observer's clock.
In General relativity, clocks that are near to a strong gravitational field (such as a planet) run slower.
Length Contraction
One of the simple aspects of Einstein's theory of special relativity is that the length of objects moving at a very high velocity undergoes a contraction along the dimension of motion.
Length Contraction
When velocity is 25% of light When velocity is 50% of light
When velocity is 75% of light When velocity is nearly equal to light
Mediums of TIME TRAVEL
Cosmic Strings
Cosmic Strings
Cosmic Strings are 1-dimensional (spatially) topological defect in the fabric of spacetime left over from the formation of the universe
Wormhole
A wormhole is a theoretical connection between a blackhole and a white hole creating a shortcut through time and space.
Stephen Hawking’s Idea
Hawking’s Train
The train will travel at speed of light and the time inside the train slows down or dilates.
Alcubierre Drive
An Alcubierre Warp Drive stretches spacetime in a wave causing the fabric of space ahead of a spacecraft to contract and the space behind it to expand. The ship can ride the wave to accelerate to high speeds and time travel
Slides Presented by-Ujjwal Baudh & Indra Bhaskar Mishra
Prepared by-Anshuman Singh
Resource collected by-Nimay Tiwari &Rahul Kumar
The best way to predict your future is to create it.
THANKS