May 1, 2020, |
1a. Time travel
A special theory of relativity published by Albert Einstein in 1905 explains
that with increasing speed, time slows down and distance in the direction of motion decreases.
Time dilation or time deceleration is an experimentally proven phenomenon.
The faster a person moves, the slower his time flows.
An experiment with an aircraft in which atomic clocks were stored proved
that the time in the aircraft was different (slower) than the time on the ground clock.
Let's look at another experiment with particles that accelerate at CERN to speeds approaching the speed of light.
Accelerated particles have a half-life much longer than identical particles
that are at rest - the time for particles that are in motion runs slower.
Time travel is interesting already at the ratio of time in the rocket and on Earth 1:10.
Even if you only spend 1 year in a rocket, it will take a full 10 years on Earth.
When you return to Earth, all your peers will be 9 years older than you.