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ashishsinghal
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In Stephen Hawkins videos he told that time was affected by mass. Why would that be? Can anyone tell?
zhermes said:Mass causes distortions to space-time, that's what we experience / refer-to as 'gravity.'
ashishsinghal said:Why on TIME?
ashishsinghal said:Why on space and time?
It's also an empirical observation of a relationship between the mass/energy distribution in a region and proper time (time as measured by a clock) for a worldline in that region. No theory of physics can ever really tell you "why" a given equation correctly describes the relationship between different quantities, it's just the business of physicists to find what the most accurate equations describing these relationships are.ashishsinghal said:you mean it is a postulate.
Stephen Hawking's theory states that time and mass are interconnected and affect each other through the curvature of space-time. This means that the more mass an object has, the more it curves the fabric of space-time, which in turn affects the flow of time.
Hawking's theory builds upon Einstein's theory of relativity by introducing the concept of imaginary time, which allows for the possibility of time travel and a beginning of time at the Big Bang. Einstein's theory only accounts for the flow of time in the presence of mass or energy.
One of the main pieces of evidence is the observed phenomenon of time dilation, where time passes slower in the presence of strong gravitational fields. This is consistent with Hawking's theory that mass affects the curvature of space-time and therefore the flow of time.
Hawking's theory has greatly influenced the study of black holes by providing insights into the nature of space and time at the event horizon, the boundary where the gravitational pull of a black hole becomes too strong for even light to escape. It also introduced the concept of Hawking radiation, which explains how black holes can emit particles and eventually evaporate over time.
Some critics argue that Hawking's theory is difficult to test and lacks mathematical proof. Others point out that it does not fully reconcile with other theories such as quantum mechanics. Additionally, the concept of imaginary time is still a topic of debate among scientists and has not been fully accepted in the scientific community.