The faster the relative velocity, the greater the time dilation between one another, with the rate of time reaching zero as one approaches the speed of light (299,792,458 m/s) this causes massless particles that travel at the speed of light to be unaffected by the passage of time. We have seen that due to the constant speed of light a moving light clock will appear to run slowly according to an external observer it was stated at the start of the page that the light clock was a thought experiment, and so it is.
For example, if the speed of light were to speed up slightly, would that somehow speed up the frequency of oscillations of caesium used in an atomic clock or would those 9 billion (or so) oscillations occur at. We start the day when the clock tells us to, work when it tells us to, eat when it tells us to, and go to bed when it tells us to time, it seems, is constant a sundial constant time note that at zero percent of the speed of light there is no time dilation at all also,.
According to the clock’s measures traveling at the speed of light, and so, for any photon too , the moment it is at what is, according to our measures (of space ad time), one end of its journey, is, for it, the same moment that it is at, what is, again according to our measures , the other end. Even at the low speed of 10% of the speed of light (300,000 km per second, or 186,300 miles per second) our clocks would slow down by only around 1%, but if we travel at 95% of the speed of light time will slow down to about one-third of that measured by a stationary observer.
If you travel away from the clock at a very high speed and view it with a telescope, you would see run slower than a clock in your vehicle a certain light source blinks once per second in its own frame of reference. The two-way speed of light is the average speed of light from one point, such as a source, to a mirror and back again because the light starts and finishes in the same place only one clock is needed to measure the total time, thus this speed can be experimentally determined independently of any clock synchronization scheme.
A light clock oriented perpendicular to the direction of its motion slows by a factor of 10 when it moves at 995% the speed of light a light clock oriented parallel to the direction of its motion must slow by the same amount when it moves at 995% the speed of light. If you could travel away from the clock as the speed of light and view it with a telescope, it would be frozen at 12 noon a spaceship that is traveling very fast with respect to your frame of reference, fires a photon beam the travels at speed c with respect to the spaceship.
The light clock is a simple way of showing a basic feature of special relativitya clock is designed to work by bouncing a flash of light off a distant mirror and using its return to trigger another flash of light, meanwhile counting how many flashes have occurred along the way. Is the accuracy of atomic clocks in any way dependent on the speed of light for example, if the speed of light were to speed up slightly, would that somehow.
A light clock oriented parallel to the direction of its motion must slow by the same amount when it moves at 995% the speed of light it can do this if its rod shrinks in the direction of motion by a factor of ten.