Nicolaas Vroom
2019-11-13 16:26:25 UTC
Consider a rod with 8 clocks, equally spaced, a distance l apart.
The rod is considered at rest. This implies that the speed of light c
in all directions is the same. We call this rule 1.
The clocks are numbered from #1 to #8.
The strategy is to perform a certain number of experiments.
The first experiment is called clock synchronisation.
Halfway in between clock #4 and #5, there is a light source which emits a
reset signal. The setup is such that the length lightpath to each clock is
the same. Using rule 1 the light signal will reach all the clocks simultaneous.
This is important because all the clocks at any moment will all show the same
count.
The second experiment starts with making an exact copy of rod #1. Also
attached to each clock there is an engine which can be fired with a standard
burst in either the forward or backward direction. Each clock also has
an observer.
The second experiment consists that each observer on rod #2 fires his engine
with a standard burst in the same direction when his clock is reset.
This burst will give the rod a certain speed v.
The now moving observers will perform the next tasks when they reach the next
clock at rest: They will write down the reading of the clock at rest and
the reading of their own moving clock.
This is the result:
They are the same for all observers. The number of counts of the moving
clocks is less than the number of counts of the clocks at rest.
This is not so strange because it means that the physical forces which
influence the behaviour of each clock are identical. Specific what this
means is that all the moving clocks stay synchronised. This is rule 2.
You can repeat this experiment, but still, rule 2 applies.
Experiment 3 is almost identical to experiment 2. That means all
the engines are fired after the reset signal is received.
This defines the starting condition of experiment 3. The starting
condition of experiment 3 is a moving rod with the speed v.
Experiment 3 involves that a certain moment the light signal between
clock #4 and #5 of the moving rod issues a reset signal.
Like before the moving observers write down the results when they reach
the next clock at rest. This is the result:
All the observers write down the same number of counts for the clocks
at rest. For the moving clocks, the results are different. The clock
in front will have the lowest count. The clock at the back the highest
count. Physical the clock in the back is reset the first.
Experiment 4 is the same as Experiment 3 with the difference that
we again make an exact copy of rod #2 before the reset signal is issued.
This is rod #3.
The extra complication is that in experiment 4 both the moving rod #2
and #3 receive the same reset signal.
The next complication is that when each of the clocks of rod #3 receives a
reset signal also the engine is fired in the same direction as experiment #2.
However, this will also give a physical complication, because the engine
in the back will start first and in front of the latest. As such the physical
forces will try to compress the rod.
The opposite case is also possible. That means physical forces will try to
expand the length of the physical rod.
Experiment 2 belongs to what you can call a symmetrical experiment.
This is the case if you start from a state at rest than in either direction
the results are the same i.e. how higher the speed how slower the
moving clock ticks.
What is also the case, after reaching a certain speed and the speed is
decreased the clock starts to run faster until the speed reaches zero.
Experiment 4 belongs to what you can call an asymmetrical experiment.
This is the case when the starting condition involves a moving rod.
In that case when a clock receives a burst in the same direction as the
original speed the clock will start to run slower.
In the opposite direction, it is first faster and then slower.
These results are maybe different as what is expected.
They challenge the concept of what means at rest.
For much more detail read this:
http://users.telenet.be/nicvroom/Article_Review_Moving%20Bodies_Appendix2.htm
Nicolaas Vroom
The rod is considered at rest. This implies that the speed of light c
in all directions is the same. We call this rule 1.
The clocks are numbered from #1 to #8.
The strategy is to perform a certain number of experiments.
The first experiment is called clock synchronisation.
Halfway in between clock #4 and #5, there is a light source which emits a
reset signal. The setup is such that the length lightpath to each clock is
the same. Using rule 1 the light signal will reach all the clocks simultaneous.
This is important because all the clocks at any moment will all show the same
count.
The second experiment starts with making an exact copy of rod #1. Also
attached to each clock there is an engine which can be fired with a standard
burst in either the forward or backward direction. Each clock also has
an observer.
The second experiment consists that each observer on rod #2 fires his engine
with a standard burst in the same direction when his clock is reset.
This burst will give the rod a certain speed v.
The now moving observers will perform the next tasks when they reach the next
clock at rest: They will write down the reading of the clock at rest and
the reading of their own moving clock.
This is the result:
They are the same for all observers. The number of counts of the moving
clocks is less than the number of counts of the clocks at rest.
This is not so strange because it means that the physical forces which
influence the behaviour of each clock are identical. Specific what this
means is that all the moving clocks stay synchronised. This is rule 2.
You can repeat this experiment, but still, rule 2 applies.
Experiment 3 is almost identical to experiment 2. That means all
the engines are fired after the reset signal is received.
This defines the starting condition of experiment 3. The starting
condition of experiment 3 is a moving rod with the speed v.
Experiment 3 involves that a certain moment the light signal between
clock #4 and #5 of the moving rod issues a reset signal.
Like before the moving observers write down the results when they reach
the next clock at rest. This is the result:
All the observers write down the same number of counts for the clocks
at rest. For the moving clocks, the results are different. The clock
in front will have the lowest count. The clock at the back the highest
count. Physical the clock in the back is reset the first.
Experiment 4 is the same as Experiment 3 with the difference that
we again make an exact copy of rod #2 before the reset signal is issued.
This is rod #3.
The extra complication is that in experiment 4 both the moving rod #2
and #3 receive the same reset signal.
The next complication is that when each of the clocks of rod #3 receives a
reset signal also the engine is fired in the same direction as experiment #2.
However, this will also give a physical complication, because the engine
in the back will start first and in front of the latest. As such the physical
forces will try to compress the rod.
The opposite case is also possible. That means physical forces will try to
expand the length of the physical rod.
Experiment 2 belongs to what you can call a symmetrical experiment.
This is the case if you start from a state at rest than in either direction
the results are the same i.e. how higher the speed how slower the
moving clock ticks.
What is also the case, after reaching a certain speed and the speed is
decreased the clock starts to run faster until the speed reaches zero.
Experiment 4 belongs to what you can call an asymmetrical experiment.
This is the case when the starting condition involves a moving rod.
In that case when a clock receives a burst in the same direction as the
original speed the clock will start to run slower.
In the opposite direction, it is first faster and then slower.
These results are maybe different as what is expected.
They challenge the concept of what means at rest.
For much more detail read this:
http://users.telenet.be/nicvroom/Article_Review_Moving%20Bodies_Appendix2.htm
Nicolaas Vroom
