Wonderful!
in [Physics]
|
From: paparios on 17 Dec 2009 13:33 On 17 dic, 15:21, mpc755 <mpc...(a)gmail.com> wrote: > On Dec 17, 1:05 pm, mpc755 <mpc...(a)gmail.com> wrote: > > Since no one is able to answer this question, I will have to answer > it. > > Since the light waves associated with the lightning strikes are > traveling relative to the water which is at rest relative to the > embankment, the Observer at M' measures to A and B in order to > determine how far the light traveled to M'. > > With the water being at rest relative to the embankment, measuring to > A' and B' is meaningless. Observer M' is passing by the location of observer M, at time t0. M' is moving at a speed v, relative to observer M, on the direction of x. All this is happening in deep space, without any gravitational mass (including water). Later, at time t1, observer M sees TWO simultaneous light signals A and B arriving from opposite directions along x. Question: a) Since observer M', in the interval of time (t1-t0) has already moved towards the source of the light signal B, did he observe the light signal coming from B before observer M, or did he not? ANSWER: YES b) Since at time t1, the ligth signal coming from point A is at the location of observer M, is it true that the light signal coming from point A has some travel to do to arrive to the location of observer M', or is it not true? ANSWER: IT IS TRUE! c) From (a) and (b) is it true that observer M' will declare that he received two non simultaneous light signals (first the light signal from point B, later the light signal from point A), or is it not true?: ANSWER: YES IT IS TRUE. BOTH OBSERVER DISAGREE ON THE SIMULTANEITY OF THE STRIKES. Miguel Rios
From: mpc755 on 17 Dec 2009 13:38 Water is at rest relative to the embankment. Lightning strikes occur at A/A' and B/B' in the water. Since the light waves associated with the lightning strikes are traveling relative to the water which is at rest relative to the embankment, the Observer at M' measures to A and B in order to determine how far the light traveled to M'. With the water being at rest relative to the embankment, measuring to A' and B' is meaningless.
From: paparios on 17 Dec 2009 13:50 On 17 dic, 15:38, mpc755 <mpc...(a)gmail.com> wrote: > Water is at rest relative to the embankment. Lightning strikes occur > at A/A' and B/B' in the water. Since the light waves associated with > the lightning strikes are traveling relative to the water which is at > rest relative to the embankment, the Observer at M' measures to A and > B in order to determine how far the light traveled to M'. > > With the water being at rest relative to the embankment, measuring to > A' and B' is meaningless. Observer M' is passing by the location of observer M, at time t0. M' is moving at a speed v, relative to observer M, on the direction of x. All this is happening in deep space, without any gravitational mass (including water). Later, at time t1, observer M sees TWO simultaneous light signals A and B arriving from opposite directions along x. Question: a) Since observer M', in the interval of time (t1-t0) has already moved towards the source of the light signal B, did he observe the light signal coming from B before observer M, or did he not? ANSWER: YES b) Since at time t1, the ligth signal coming from point A is at the location of observer M, is it true that the light signal coming from point A has some travel to do to arrive to the location of observer M', or is it not true? ANSWER: IT IS TRUE! c) From (a) and (b) is it true that observer M' will declare that he received two non simultaneous light signals (first the light signal from point B, later the light signal from point A), or is it not true?: ANSWER: YES IT IS TRUE. BOTH OBSERVERs DISAGREE ON THE SIMULTANEITY OF THE STRIKES. Miguel Rios
From: mpc755 on 17 Dec 2009 14:00 Water is at rest relative to the embankment. Lightning strikes occur at A/A' and B/B' in the water. Since the light waves associated with the lightning strikes are traveling relative to the water which is at rest relative to the embankment, the Observer at M' measures to A and B in order to determine how far the light traveled to M'. With the water being at rest relative to the embankment, measuring to A' and B' is meaningless.
From: Michael Moroney on 17 Dec 2009 15:06
mpc755 <mpc755(a)gmail.com> writes: >Water is at rest relative to the embankment. Lightning strikes occur >at A/A' and B/B' in the water. Since the light waves associated with >the lightning strikes are traveling relative to the water which is at >rest relative to the embankment, the Observer at M' measures to A and >B in order to determine how far the light traveled to M'. >With the water being at rest relative to the embankment, measuring to >A' and B' is meaningless. Frame jumping. Flunk. |