Time dilation is not solely a result of the gravitational field acting on the mechanism of a clock. While gravitational time dilation is one aspect of it, there is also another form known as relative velocity time dilation, which occurs due to relative motion between observers.
Gravitational time dilation occurs in the presence of a gravitational field, where the strength of the gravitational field affects the flow of time. The closer an object is to a massive body, the slower time appears to pass for that object compared to a distant observer. This effect has been observed and measured in experiments and has been confirmed by numerous scientific observations, such as the famous experiments involving atomic clocks on airplanes and satellites.
Relative velocity time dilation, on the other hand, arises from the relative motion between two observers. It is a consequence of the theory of special relativity. According to this theory, as an object moves faster relative to an observer, time appears to pass slower for the moving object compared to the observer at rest. This effect has also been extensively tested and confirmed through experiments, such as the synchronization of atomic clocks in high-speed particle accelerators.
It is important to note that time dilation is a fundamental aspect of the theory of relativity, which has been extensively tested and validated through experimental observations and predictions. It is not dependent on the existence of clocks or human inventions. Time dilation would still occur even if clocks had never been invented.
The effects of time dilation have been measured and observed in various experiments, including the famous Hafele-Keating experiment, which involved comparing the time measured by atomic clocks on aircraft flying around the Earth with clocks at rest. These experiments provide strong evidence for the existence of time dilation.
Additionally, the principles of time dilation are also essential for various technologies to work correctly. For example, the Global Positioning System (GPS) relies on the precise measurement of time, and its accurate functioning requires accounting for both gravitational and relative velocity time dilation effects.
In conclusion, time dilation is not a concept that solely depends on the existence of clocks or human inventions. It is a fundamental aspect of the theory of relativity and has been observed and confirmed through experiments and real-world applications.