1. Time Travel
Made by: Sonya Balay

2. What is time?
Time is an illusion, it is relative and can vary for different observers depending on the speed through space.
The great physicist Albert Einstein considers time as the “fourth dimension”.

3. Time travel Moving between different points in time.
According to many scientists it is linked with parallel universes.
Travel into the future (not the past) via time dilation is a well-proven phenomenon in physics (relativity).

4. Theories
Black holes - gravity can change time, they warp the fabric of spacetime (the three spatial dimensions and time combined in a four-dimensional continuum
Wormholes - known as "Einstein-Rosen Bridge“ - a feature that would fundamentally be a shortcut through spacetime like a tunnel with two ends, each in separate points in time.
A ship moving relatively with the speed of light.

5. Evidences

6. Consequences
Russian physicist Igor Novikov developed a theory called the Self-Consistency Principle, under which the odds of any action that you might take creating a time paradox is basically zero.
Butterfly effect - a small change in one state of a deterministic nonlinear system can result in large differences in a later state.
The grandfather paradox
The twins paradox

7. The end