# Effects of Gravity and velocity on Time

• Howard Huerta
In summary, the conversation discusses the concepts of gravity, velocity, time, and the expanding universe. It mentions that time on Earth is slightly slower than on the sun and slightly faster in space. The universe is expanding, which may mean that time is slowing down. The big bang, which occurred everywhere in the universe, was the starting point of time and space. The conversation also requests for longer, more detailed explanations rather than simple answers.
Howard Huerta
I'm an amateur, but was wondering if you experts can help me wrap my head around gravity velocity and time; and the universe.

If as gravity increases time slows down, isn't time faster on Earth than on the sun? And faster, still in interstellar and intergalactic space?

Also, if the universe is expanding, does that mean time is slowing down? How is time affected by galaxies moving apart from one another or for that matter from the location from which the big bang started?

Thanks.

To us on Earth, time on the sun is slightly slower. In space it is slightly faster as long as the velocity relative to us isn't to high.

In an expanding universe everything receding from us with enough velocity will appear to have their time slowed down, while we would appear to be slower because we are moving away from them. Also, the big bang had no single location. The big bang happened EVERYWHERE in the universe. It was the starting point OF the universe. A misconception is that it was an explosion IN space, when in fact it was an "explosion" OF time and space. There was not any space "outside" of the big bang if you will.

Also, could someone move this to the relativity forums?

## 1. How does gravity affect time?

Gravity affects time by warping the fabric of space-time. The stronger the gravitational force, the slower time passes. This phenomenon is known as gravitational time dilation.

## 2. Does velocity affect time?

Yes, velocity also affects time. According to Einstein's theory of relativity, time passes slower for objects that are moving at high speeds. This is known as time dilation and has been proven through experiments with atomic clocks.

## 3. Can gravity and velocity cancel each other out when it comes to their effects on time?

No, gravity and velocity cannot cancel each other out. Both of these factors have an impact on time dilation, but they are not opposing forces. In fact, the effects of gravity and velocity can compound each other, resulting in even greater time dilation.

## 4. How do these effects of gravity and velocity on time impact space travel?

The effects of gravity and velocity on time are crucial to consider in space travel. For example, astronauts on the International Space Station experience slower time due to their high speeds and weaker gravitational force. This must be accounted for in mission planning and navigation.

## 5. Is there a limit to how much time can be affected by gravity and velocity?

There is no known limit to how much time can be affected by gravity and velocity. The effects of time dilation have been observed and proven in various scenarios, including near black holes and in high-speed particle accelerators. However, the extent of time dilation is determined by the strength of gravity and the speed of the object in question.

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