SR?
Jonas Thörnvall
to SR theory?
Object A velocity=150 000 km/s A-vector x=1 y=1 z=1
fires photon (E in t 2) E-vector x=-1 y=-1 z=-1
Object B velocity=0 km/s B-vector (rest origo)
Object C velocity=150 000 km/s C-vector x=-1 y=-1 z=-1
fires photon (F in t 2) F-vector x=1 y=1 z=1
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++
t 0
(frametime=0s) (velocity=0.5c)
A>>
(frametime=0)
(velocity=0.0c) (distance A=600 000 km C=600 000 km)
<<rest B frame>>
(frametime=0) (velocity=0.5c)
<<C
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++
t 1
(frametime=1s) (velocity=0.5c)
A>>
(frametime=2s)
(velocity=0.0c) (distance A=0 km B=0 km)
<<rest B frame>>
(frametime=1) (velocity=0.5c)
<<C
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++
t 2
(frametime=2s) (velocity=0.5c)
>>A
<<D
(frametime=4)
(velocity=0.0c) (distance A=600 000 km C=600 000 km D=600 000 E=600 000)
<<rest B frame>>
(frametime=2s) (velocity=0.5c)
C<<
E>>
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++
t 3
(frametime=3s) (velocity=0.5c)
>>A
[What's up with time, photon D will never reach object C]
[Should i assume object C travels with 1c?]
<<D
(frametime=6)
(velocity=0.0c) (distance A=1200 000 km C=1200 000 km D=0 km E=0km)
<<rest B frame>>
(frametime=3s) (velocity=0.5c)
C<<
E>>
[What's
up with time, photon E will never reach object A?]
[Should
i assume object A changed it's velocity to 1c?]
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??????????????????????????????????
As you can see distance is the same after 1 second, 2 seconds a billion
seconds, i had expected that photon E and F at some point would catch up
with C and A,
after all they just travel with half light speed?
Jonas Thörnvall
Sorry about the vector confusion but my point is they travel along the same
vector in different directions.......
and...@ibm.net
>
> Is this SR? I'm not sure if i understand SR correct does this example apply
> to SR theory?
>
> Object A velocity=150 000 km/s A-vector x=1 y=1 z=1
> fires photon (E in t 2) E-vector x=-1 y=-1 z=-1
> Object B velocity=0 km/s B-vector (rest origo)
> Object C velocity=150 000 km/s C-vector x=-1 y=-1 z=-1
> fires photon (F in t 2) F-vector x=1 y=1 z=1
>
>
[snip]
Your notation is not very clear from the beginning. What
is A-vector supposed to mean? In SR, things are described
by 4 vectors. If A has speed v (= 150,000 km/s) in some
frame, then A's 4 velocity is gamma*(1,v*sin(theta)*cos(phi),
v*sin(theta)*sin(phi),cos(theta)) in that frame
where theta and phi describe the direction of the velocity
in that frame. For the photon, the 4 velocity
is (1,sin(theta')*cos(phi'),
sin(theta')*sin(phi'),cos(theta')) where theta' and phi'
describe the direction of the photon's velocity in that
frame.
Whatever you're thinking about SR is wrong and it's
confusing enough that you need to reformulate it to
have it make any sense in SR.
John Anderson