# Thread: Hello, new person with very basic knowledge

1. Hi, Im just an average person with very... very limited knowledge in physics but a question has been bugging me for a few days, and I've no idea how to answer it. I'm hoping its going to be simple for you guys.

Its basically a question on the affect of mass as it approaches the speed of light.

I've read that an object, be it particle or spacecraft, whatever will become more massive and achieve higher density in relation to the speed of light. To the point that at C it becomes infinately massive/dense and also that time dialation may cause time to "stop" for that object.

If this is right, i have another question.

What occurs if a mass reaches 0 velocity? assuming any atomic movement above 0 K is also counted as velocity?

Would the opposite occur as to what happens at C? The mass would achieve 0 density/mass and would pass through time at an infinite rate, most probably resulting in atomic decay instantly due to existing at every point in time all at once?

Like i said, im not that great with science and this has probably been answered before or is completely wrong , but any answer would be great.

2.

3. Nothing like that happens. When motion stops, then time dialation has no effect.

4. So at zero velocity there is also zero time dialation? And at C theres a maximum value for that sake of making it easier?
Maximum being 0 passage of time. so what would be the opposite of 0 time passage?

5. OH GOD

at 0 speed time is slowed down by 0, it isnt going any slower, while at C its slowed down infinite times

6. sorry to hijack your thread a bit goose, but quick question thats related, the mass of an object increases when getting close to C, but what happens when thats stopped? does the object still have the increased mass or not?

7. you mean if it stops moving? it get its restmass as mass. And have more amss than its restmass when its moving

8. ahh ok, wasn't sure if it gained any?

9. it doesnt get anything if its at rest, but gain infinite at C

10. I'm not an expert either, but if the atomic struction of the particle/object is entirely still, the only change is in temperature, in this case it would be 0 Kelvin (Absolute Zero). The time shouldn't be affected.

11. "at 0 speed time is slowed down by 0, it isnt going any slower, while at C its slowed down infinite times"

so time passes at the samerate as it does for us sitting in front of our pc's now. how fast are we going now?

and also is there any theory of the rate at which time passes if its "slowed down by 0"? like 10 seconds per second or 30 years per second.

Since we're moving at a velocity i kind of find it hard to believe that our concept of time is the same as mass travelling at 0, that'd be a hell of a coincedence. So i still have to assume time would pas faster for the 0 velocity mass, because that just kinda makes sense.

12. Goose, 0 in velocity is the 0 relative to you, it has the exact same time dilation as you do therefor it seems for you it doesnt slow down in time.
There is no such thing as absolute rest, dont go in here martillo damn it. Its all relative, relative to the sun we are moving 30km/s, relative to us it is moving 30km/s and so on, so there is a timedilation there, then there is aditioinal timedilation if you move on earth and so on. Its all about relative velocity.

Also i tell you the same thing i told martillo, leave your common sense somewhere else, it has nothing to do with physics of the extreme, such as relativity and QM

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