Constant speed of light (1 Viewer)

[abdooooo!!!]

ok i'll post my thoughts on this... i think it'll fit... if the twin paradox thing works. because all you are doing is transforming the percieved distance, length into percieved time. so if this percieved time affects human aging i don't see why it would not affect the actual length of the train at that speed. so it'll fit.

edit: does that make sense to you?

 

[Wohzazz]

Hypothetically....
i mean for that INSTANT, would the train fit in the tunnel?

 

[abdooooo!!!]

did you read my post? don't tell me you're not reading it again... hahaha... seriously study hsc man.

 

[Xayma]

I dont think it will, because you would have to occupy the same point in space-time relative to the train (ie the tunnel shrinks so to build the wall you will have to build through the train)

 

[abdooooo!!!]

Originally posted by Xayma
I dont think it will, because you would have to occupy the same point in space-time relative to the train (ie the tunnel shrinks so to build the wall you will have to build through the train)

but you have to realise the SPEED has made the two share a different time in space. in my mind the law of themodydamics still applies here... hahaha... time is length in a different form.

 

[Xayma]

Yes but relative to the train it never fits entirely in the tunnell, so to try and block off the ends would cut the train into segments.

 

[Constip8edSkunk]

whose frame is it are you takinf for the tunnel to be blocked, while the fron and the back being shut may appear simultaneous for the observer on the tunnel it wont b for the train

 

[Xayma]

Come someone please explain to me why we are discussing physics that isnt required of us at midnight during the christmas holidays?

 

[abdooooo!!!]

ok Wohzazz, don't worry about what others say. i know what you mean.

if you know the twin paradox situation... the twins age differently when they are travelling at different speed. but they return to the same rate of aging when they are at the same speed relative to each other again... its just that one is so much other than the other because the difference in aging before.

so with the distance thing samething applies, this length has to be REAL if this time was real as well according to the twin paradox situation, so it'll fit if its speeding at a real fast SPEED. my answer is it will fit. ok??? any thoughts Wohzazz?

 

[Constip8edSkunk]

i dun think its the xmas holidays anymore

edit:
the twins paradox works coz at the point of the space ship turning around decelerating and then accelrating the time passes differently

http://www.phys.unsw.edu.au/~jw/twin.html

 

[Xayma]

But if you block off the ends of the tunnel, the train will have to stop returning to the same frame of reference as the observer, which would require its length to be greater then that of the tunnell, since the train is indestructible the walls must break

 

[abdooooo!!!]

Originally posted by Xayma
But if you block off the ends of the tunnel, the train will have to stop returning to the same frame of reference as the observer, which would require its length to be greater then that of the tunnell, since the train is indestructible the walls must break

hahaha... who doesn't know that? all Wohzazz wanted to know is whether this length contraction is actually physical or just a percieved thing... if you know what i mean.

edit: just like the twin paradox... they actually age differently so its physical... but has anyone done any actual experiment into it?

 

[Xayma]

What would the point of blocking off the tunnel then unless you want to convert large amounts of kinetic energy to heat energy.

They have done experiments on the twins paradox, its just time dilation. Length dilation gets a little more complex however, because it is a "physical" thing, you can block off areas of space, not time.

 

[Constip8edSkunk]

isnt everything physical a perception?

 

[abdooooo!!!]

Originally posted by Constip8edSkunk
isnt everything physical a perception?

lets not argue that here... philosophy is just too much.

Originally posted by Xayma
What would the point of blocking off the tunnel then unless you want to convert large amounts of kinetic energy to heat energy.

how can you mearsure it then? with a camera then use a ruler? hahaha... thats 100% percieved.

 

[Xayma]

ROFL, so if I shot in front of you while you were under length dilation, so that relative to me you dont get hit, but relative to you, you get shot in the head. Do you die or not? Oh yeah when the bullet passes that point in space, if you werent moving you would have been shot.

edit: can we test it?

 

[abdooooo!!!]

Originally posted by Xayma
ROFL, so if I shot in front of you while you were under length dilation, so that relative to me you dont get hit, but relative to you, you get shot in the head. Do you die or not?

edit: can we test it?

i don't know... thats what im wondering about? seriously if that twin paradox thing is real then it should work like that. weird.

edit: test it? hahaha i'll shoot you at different speeds and see what will happen eh?

this is one of them matrix things i suppose... they slow down time LOL

 

[Constip8edSkunk]

Originally posted by abdooooo!!!
lets not argue that here... philosophy is just too much.

how can you mearsure it then? with a camera then use a ruler? hahaha... thats 100% percieved.

i mean all the relativistic effects are preceptions from relative frames. you cant agree that there are some concrete absolute 'physical' state

 

[abdooooo!!!]

Originally posted by Constip8edSkunk
i mean all the relativistic effects are preceptions from relative frames. you can agree that there are some concrete absolute 'physical' state

but did i not say "IF" twin paradox situation is REAL? there are some? its fully concrete if its real... unless you are looking from a philosophical point of view.

 

[Constip8edSkunk]

Originally posted by Xayma
ROFL, so if I shot in front of you while you were under length dilation, so that relative to me you dont get hit, but relative to you, you get shot in the head. Do you die or not? Oh yeah when the bullet passes that point in space, if you werent moving you would have been shot.

edit: can we test it?

practically the guy will move past before the bullet reaches him


..... when the pt in space is same the time isnt is it?