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What is Space Time? | StarTalk


what is space-time you already know you

what is space-time you already know you have never met someone at a place unless

have never met someone at a place unless

have never met someone at a place unless it was also at a time you have never met

it was also at a time you have never met

it was also at a time you have never met someone at a time unless Aloka I guess I

someone at a time unless Aloka I guess I

someone at a time unless Aloka I guess I get so eat well well wait a minute what

get so eat well well wait a minute what

get so eat well well wait a minute what happens to a photon from 13 billion

happens to a photon from 13 billion

happens to a photon from 13 billion point 800 million years that comes this

point 800 million years that comes this

point 800 million years that comes this way and enters my eye so I can see it

way and enters my eye so I can see it

way and enters my eye so I can see it why where is this worth spacing involved

why where is this worth spacing involved

why where is this worth spacing involved in that um

in that um

in that um it entered your eye at a time and at a

it entered your eye at a time and at a

it entered your eye at a time and at a place right here

place right here

place right here that’s all that that’s all this all of

that’s all that that’s all this all of

that’s all that that’s all this all of that is all that’s all we’re not well

that is all that’s all we’re not well

that is all that’s all we’re not well once you have formalized space and time

once you have formalized space and time

once you have formalized space and time and know that they’re conjoined then you

and know that they’re conjoined then you

and know that they’re conjoined then you can make all kinds of fascinating

can make all kinds of fascinating

can make all kinds of fascinating calculations well Rosa let the trains

calculations well Rosa let the trains

calculations well Rosa let the trains going and I’m out of there I’m walking

going and I’m out of there I’m walking

going and I’m out of there I’m walking down the train I’m walking on there at

down the train I’m walking on there at

down the train I’m walking on there at the time and the training is James what

the time and the training is James what

the time and the training is James what is all that’s all the consequences of

is all that’s all the consequences of

is all that’s all the consequences of thinking about space and time as

thinking about space and time as

thinking about space and time as conjoined but it’s confusing

conjoined but it’s confusing

conjoined but it’s confusing oh I will not only is it the universe is

oh I will not only is it the universe is

oh I will not only is it the universe is under no obligation to make sense to

under no obligation to make sense to

under no obligation to make sense to William Shatner no but William Shatner’s

William Shatner no but William Shatner’s

William Shatner no but William Shatner’s under the obligation to make sense of

under the obligation to make sense of

under the obligation to make sense of the universe as is you are doing and and

the universe as is you are doing and and

the universe as is you are doing and and and and and why do why do I slow down as

and and and why do why do I slow down as

and and and why do why do I slow down as I approach the speed of light it doesn’t

I approach the speed of light it doesn’t

I approach the speed of light it doesn’t apply to a photo thinking now you want

apply to a photo thinking now you want

apply to a photo thinking now you want to freak out I don’t you know I don’t

to freak out I don’t you know I don’t

to freak out I don’t you know I don’t your head to explode

your head to explode

your head to explode you ready yeah okay no you’re not ready

you ready yeah okay no you’re not ready

you ready yeah okay no you’re not ready you real I’m ready I’m ready okay the

you real I’m ready I’m ready okay the

you real I’m ready I’m ready okay the faster you go the slower time ticks say

faster you go the slower time ticks say

faster you go the slower time ticks say that again the faster you move yeah

that again the faster you move yeah

that again the faster you move yeah slower at times you have said for you

slower at times you have said for you

slower at times you have said for you yeah as seen by others right as you

yeah as seen by others right as you

yeah as seen by others right as you approach the speed of light time

approach the speed of light time

approach the speed of light time continues to slow down yes at the speed

continues to slow down yes at the speed

continues to slow down yes at the speed of light time stops which means for a

of light time stops which means for a

of light time stops which means for a photon moving at the speed of light when

photon moving at the speed of light when

photon moving at the speed of light when it is absorbed in your retina it is the

it is absorbed in your retina it is the

it is absorbed in your retina it is the same instant it was emitted at the Big

same instant it was emitted at the Big

same instant it was emitted at the Big Bang fourteen billion years ago that’s

Bang fourteen billion years ago that’s

Bang fourteen billion years ago that’s what I thought that’s the filter gets

what I thought that’s the filter gets

what I thought that’s the filter gets emitted BAM it’s in your as far as its

emitted BAM it’s in your as far as its

emitted BAM it’s in your as far as its concerned it is in your eye in that same

concerned it is in your eye in that same

concerned it is in your eye in that same and we measure that photon and and these

and we measure that photon and and these

and we measure that photon and and these are

are

are the big bad I know that that came from

the big bad I know that that came from

the big bad I know that that came from the Big Bang and I’m watching it and

the Big Bang and I’m watching it and

the Big Bang and I’m watching it and it’s taken 13.8 billion years to reach

it’s taken 13.8 billion years to reach

it’s taken 13.8 billion years to reach you but if you are that photon it does

you but if you are that photon it does

you but if you are that photon it does not experience that time delay what a

not experience that time delay what a

not experience that time delay what a great science fiction story that

great science fiction story that

great science fiction story that instantaneous

[Applause]

[Applause] [Music]

[Music]

[Music] you

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