Hello and welcome to Real World Magic, where we make your life more magical.
My name's Neil Trigger, I'm going to be your host, and today we're going to be talking
about Time Travel.
So I'm very excited about this video, because I've been wanting to do it for a while.
But what I wanted to focus on specifically is why every film, TV programme (potentially),
and book that you've ever seen about time travel is probably not accurate.
So let's get into it.
American astronaut, Peggy Whitsun is leaving the planet for the very first time.
Okay, so that came from a BBC documentary about Peggy Whitsun, an astronaut with the
NASA space programme; who went off to space, and came back over 600 days later, a little
bit younger than she should otherwise would have.
Not by much though.
Granted, the difference is only 0.02 seconds, in her case, even after over 600 days up in
space, but it's a real example of Time Travel in action.
So would you call that time travel or would you call it time dilation?
There is a difference.
Is the speed of light appears constant to everybody, it means that time has to vary
and travel at different rates for different people.
Okay, so time dilation's a real thing, people have actually done it.
Human beings have actually travelled in time...
If that's your definition.
That's not my definition because (frankly), it's just not Back to the Future, is it?
"Hello, Hello "(Laughing)", anybody home?"
Okay, so the whole idea is that Peggy Whitsun travelled forward in time by less than a second
by travelling faster than those people travelling on Earth.
Of course, Earth does travel, but I'll get to that in a second.
So if you can travel forward in time by less than a second just by dilating time, then
obviously time travel is possible in the forward direction, but what about back?
Okay, so here I am back in time, before my hair grew long - It's nothing to do with a
haircut, I promise.
Now, this might seem a little bit strange, but we are not sitting still.
Sure, it looks like we are, sat there watching this video in your living room, bedroom, or
kitchen - or even on the toilet (you weird creature).
But we are actually moving all the time.
The speed of the rotation of the Earth is around 1,000 miles per hour.
Naturally at the poles, this speed diminishes to zero, however, regardless of the fact that
we can't stand at the poles for very long without freezing to death, the Earth itself
rotates around Sol1 (that's our Sun), a GV2 star, which itself orbits a super-massive
black hole at the centre of the Milky-Way galaxy.
We call this radio hotspot Sagitarius A, but whether that's the name of the black hole,
I couldn't find out in any of my research.
Anyway...
We're moving around the sun at 450,000 miles per hour, and then around the super-massive
black-hole at the speed of about 514,495.35 miles per hour.
Why am I saying all this?
Well, because it's super-relevant to time-travel.
You see, if we are moving in space, at over half a million miles per hour, a short time
hop to even a second ago will see us over 142.9 miles off the planet.
That's not very far.
We can travel that in a few hours by car, but let's not forget that the whole planet
would have moved that far!
We could find ourselves buried under 142 miles into the burning magma of the Earth, or floating
in the micro-gravity of near-Earth.
Sure, we have inertia, so you'd follow the Earth, for a while.
But you wouldn't last long... not in the vacuum of space where the temperature is around minus
275 degrees celcius!
So, The Terminator, Back to the Future, Bill and Ted, The kissing booth, 13 going on 30,
about time, looper, x-men, days of future past, Men in Black 3, Hot tub Time Machine,
Meet the Robinsons, Harry Potter and the Prizoner of Azkaban, H.G. Wells' the time machine,
Time cop, 12 Monkeys, nearly every single time traveller in TV, literature and film
all ignore the fact that in order to timetravel backwards in time, you need to travel backwards
in space.
In fact, the only shining exceptions are the oldest science fiction show on Earth, Dr Who...
"It's smaller on the outside...
Okay...
That is a first!"
And Elan Mastai's book All our wrong todays, (which is an excellent book by the way).
Also, if you want a nice time travel book, check out my book, The Weird Case of Mrs Etherington-Strange.
I've provided a link in the description, and yes, I've also ignored the space jump... but
Magic's involved, so that's probably Okay.
So we need to move in both time and space for backwards time travel to be possible and
that would mean instant space-travel.
I'm talking teleportation.
Teleportation needs to be invented before we can invent backward time travel.
So the question really is "Is teleportation possible?"
Well, that's the subject of next week's show.
Thank you very much for watching, guys!
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you very much again.
Stay Magical