1. BY-Suraj Jaiswal

2. 1.Understading time
2.Theory of Time Travel
3.Possibilities of Time Travel
4.Theory of relativity
5.Time Machine
6.Advantages

3. What is time? While most people think of
time as a constant, physicist Albert
Einstein showed that time is an illusion; it is
relative it can vary for different observers
depending on your speed through space. To
Einstein, time is the "fourth dimension
Einstein's theory of special relativity says that
time slows down or speeds up depending on
how fast you move relative to something else.
Approaching the speed of light.

4. Time travel is a science
fiction concept in which
people able to move back into
the past or vice versa by means
of machine(a Time Machine)
or a Warmhole..

6. 1.THE WARM HOLE
2.BLACK HOLES
3.TIME MACHINE
4.SPACE CRAFT
5.INFINITE CYLINDER

7. Wormhole
• There maybe holes in space in which we can
travel between alternate universe.

8. A black hole is a region of spacetime from
which gravity prevents anything, including
light, from escaping

9. TIME MACHINE

17. A moving clock runs slower than a stationary clock by a
factor ‘ γ ’
Where ,

18. Using formulae of time
dilation we can conclude
that if speed is
comparable to speed of
light (c), our age or time
of moving body slows
down by a noticeable
factor

19. ADVANTAGES

20. Object Time for the Light to Reach Us
The Moon 1 1/3 sec
The Sun 8 minutes
Jupiter 35 to 52 minutes
Pluto 5 1/2 hours (on average)
Alpha Centauri
(nearest star system)
4.3 years
Sirius (brightest star in
our sky)
9 years
Betelgeuse (bright
star)
430 years
Orion Nebula 1500 years
Andromeda Galaxy 2.5 million years