Science – Two Episodes, Four Hours: The grand finale of Season 4 of Stranger Things is released on Friday, July 1 on Netflix. As in previous literature, the plot includes its share of supernatural events. One of the great topics of science fiction is being explored in particular…
This article provides details about the first volume of Season 4
In the first volume of this final season, the heroes realize that the world has turned upside down Located To an era other than the real world, where time no longer flows. This is a parallel world Already stuck in 1983 while Hawkins teens live in 1986. There is no choice to defeat Vicna,The astral creature of this opus,Our heroes will have to double the jumps in the past.
Traveling in the past with telescopes
These seemingly unreal time journeys exist in our universe. Although humans cannot ride in a time machine, it has been known since an experiment conducted in the 1970s that time flows differently on Earth than in space.
Circular site Space Place From NASA explains that telescopes allow us to see very distant stars and galaxies. Light from distant galaxies takes a long time to reach us. So when we look at the sky with a telescope, we see what those stars and galaxies looked like from a very long time ago.
Of course, this definition has nothing to do with Marty McFly’s trip down memory lane on a time machine Back to the future. But don’t be too disappointed, science can at least allow us to better understand the time travel of science fiction movies and books.
Go to the history of the last changes
To fully understand, you have to go back more than 100 years to the time when Albert Einstein developed the theory of relativity. The researcher combines space and time into a single entity, “space-time”.
For decades, physicists have tried to use this theory to determine if time travel is possible. But they faced many limitations…
The most famous example of making leaps into the past impossible is the “grandfather paradox”. If someone (let’s call it X) goes back in time and kills a younger version of their grandfather, the grandfather will not have children and thus wipe out the parents of a traveler named X. Thus the existence of X is not possible, making this time travel impossible.
Creating a parallel universe
However, some theorists did not give up, and sought to resolve these paradoxes. Barak Shoshani, assistant professor at Brock University (Canada), is one of those. In the scientific media ConversationAnd the It explains how it is possible to go to the past by creating parallel worlds, without jeopardizing the present.
The idea is simple: When I get out of the time machine, I get out to a different timeline. I can do whatever I want there, without changing anything in the schedule I come from. Thus, the creation of these parallel universes makes it possible to go into the past without modifying the course of history.
This concept is of course purely mathematical and “time travel” is an event that cannot actually happen. However, today these theories inspire the science fiction series we devour on weekends, such as Weird things.
See also on HuffPost: Stranger Things Season 4 reveals its new trailer