The science of Interstellar

1. INTERSTELLAR: QUESTION
7
Made by Sara Van Maele, Niels Vansteenkiste, Marrone Elisa, Carradori
Tommaso, Giorgia Presepi, Eva Oliveira

2. Can you influence the past by
traveling over time?

3. No, because the dilatation over time thought by Einstein, makes
possible travel to the future, like in the film “Interstellar” (through a
very fast time-travel, faster than the light’s sped), but no scientific
theory can show the possibility to travel to the past. Some physics
try to imagine theoretical patterns that could make a travel to the
past compatible with the nature’s laws.

4. http://dilation.1e5b.de/

5. Relativity: This theory, formulated by Albert Einstein, has two main parts: the Special Theory of Relativity
(or special relativity) which deals with objects in uniform motion, and the General Theory of Relativity (or
general relativity) which deals with accelerating objects and gravity.
There’s a theory, known as “retrocausality” (any of several hypothetical process that reverse causality,
allowing an effect to occur before its cause) that suggests that a particle can run backwards through time
to the point where it is entangled and affects its partner that way.
The standard quantum theory dictates that all the particles in the universe have no definitive states , that
is, until they are measured.
Additionally, when two particles interact, they become entangled on a quantum, sub-atomic level and rid
themselves of their individual probabilities.
Albert Einstein first described this as “spooky action at a distance” as even though the two entangle
particles could be at opposite ends of the universe, they are still connected somehow as one of the two
particles would be horizontally polarised, while the other would become vertically polarised.
His first pointed out this instantaneous "action at a distance" in 1935, when he argued that it meant
quantum theory must be incomplete. Modern experiments have confirmed that this instantaneous action
is, in fact, real, and it now holds the key to practical quantum technologies such as quantum computing
and cryptography.

7. WHY IS COOPER YOUNGER THAN HIS
DAUGHTER IN THE END OF THE
MOVIE?
• 1 hour in space = 7 years on earth
• Time is relative
• In the movie, the hero gets close to a black hole, which causes him to travel at
close to the speed of light, while his daughter remains on
Earth travelling at regular mortal speeds.
But for both of them, the speed of light has to remain the same, if they measured it,
as per the bizarre-o rules of this universe we live
in. So to achieve this magic, the space-time continuum itself bends.

8. CAN WE TRAVEL IN FUTURE?
It can only happen in small increments of time. And, it has only happened (so far) to very few people who
have traveled off Earth’s surface like astronauts .
Could it happen in longer time spans?
It might, theoretically. According to Einstein’s theory of special relativity, the passage of time is relative to an
object’s speed. The more quickly an object moves through space, the more slowly time passes for it
compared to an observer traveling at a slower pace.A common example is the twin paradox : take a pair of
twins, each 20 years old. One takes off on a spaceship on a five-year journey traveling at nearly the speed of
light. That twin ages five years while on the journey, at the end of it he is 25. However, the twin who stayed
behind is 95 years old. The twin on the ship experienced only five years, but returns to an Earth that is much
farther into the future. You could say that the space-faring twin traveled MUCH further into the future. It's all
relative.

9. CAN WE TRAVEL IN PAST?
Unfortunately, with our current technology, travel in
past it’s pretty much impossible. Maybe in the future
people will be able to travel in time, but until then
that idea will be relegated inside a science fiction
book or into ‘’ Interstellar’’.