English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Well we all know this is a very theoretical subject, and for the most part questions are hypothetical, but with that in mind here goes:


One of the points made by Einstein in relativity is that the mass of an object would increase as its speed increased. And as the object's speed approaches the speed of light (c) its mass approaches infinity. If its mass approaches infinity then so does the gravity associated with it.

So as you approach the speed of light you cover very large distances, but also the distance required to travel becomes less because your infinite mass and gravity bring your destination closer to you.

2007-02-22 07:35:38 · 7 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

"in YOUR reference frame, your clock runs at a normal speed,"

That's not at all true. It has been proven that an Atomic Clock on a jet flying cross country will run slower than a stationary Atomic Clock. Two clocks running at different rates regardless of reference frames. When the clocks were brought back they were out of synch......period.

2007-02-22 08:05:59 · update #1

Dwayne: Two forces only cancel each other out when they act in opposite directions, and are equal in magnitude. Both objects are attracting the other in this case. There is no repelling force to cancel out the attraction.

2007-02-22 08:26:46 · update #2

7 answers

Nobody gets it. When all these things are said about mass and distance and time, they refer to how I measure things when you're moving at that speed compared to my reference frame. Even though you go fast as I measure it, in YOUR reference frame, your clock runs at a normal speed, you do not gain mass etc. You do not travel close to the speed of light with respect to any fixed place in the universe so the effects are not real. It's just how I would measure them and experience them if I measured you moving that quickly. In turn, you could look at me and see my slow clock and huge mass etc.

2007-02-22 07:45:54 · answer #1 · answered by Gene 7 · 0 1

The swing of a pendulum clock does indeed depend on the gravitaional mass magnetude which in turn affect the gravitay acceleration.
The formula is T^2 = lamda/ gravity acceleration. So if gravitational mass increase as it moves the acceleration is proportional to it the pendulum time.
What is happening the earth does increase in mass as it moves around the Galaxy. The result is that the earth is spinning slower due to the increased change in acceleration.
So as the earth's Mass increases our lenght of days are getting longer.
As far as Einstein time dilation it only applies to motion relative to the speed of light. And the motion of the earth is so slow compared to light.
So the above formula is used in making gravitational time calculation.
It is impossible to accelerate an electron at the speed of light because it would take a very large time to even come close. The electrons 's mass should be per formula close to infinity. But it has not been observed as such in the lab.
So there is doubt about Einstein formula of mass increase with velocity applying to our peresent Universe. Maybe at Creation time mass increase per second would have taken place a lot faster than the speed of light. However this is not the case with the electron's mass being accelerated in a Synchrotron.

The only way that the earh would increase its mass is not becausei ts moving faster but because its receiving cosmics mass.
Neverthe less your question is correct in the sense as gravity mass would approach a large value as it moves another gravity mass will fall faster to it till it collides.

2007-02-22 18:33:51 · answer #2 · answered by goring 6 · 1 1

The part about gravity would not hold true. The gravity forces would cancel themselves out because the same force that you think might bring your destination closer would be the same force pulling on you from where you had been.

I read your comment about canceling gravity. And maybe I am viewing this wrong. I will try to explain from my point of view. If mass is increasing the space around the mass is equally displaced therefore making the gravity forces around it equal in all directions. It should have nothing to do with the speeds you are traveling. A bit like rolling a bowling ball across a sheet. The dimple is evenly proportionate all around the ball regardless of speed or direction. ;-)

2007-02-22 16:16:39 · answer #3 · answered by Dwayne 2 · 0 1

All that Einstein proved with general relativity is that what we think of as TIME behaves in the same manner as the dimensions we call LENGTH, WIDTH, and HEIGHT, and really is a measure of MOTION in relation to other objects.

The extension of this is that what we think of and perceive as TIME is actually a man-made, artificial illusion. Basically, a minute is only a minute because a MAN decided it would be that way based on lunar and solar cycles to fit with agricultural needs at the time. However, these factors are only relatively constant on this planet BUT for the sake of our time system are treated like universal constants.

What we conceive as a "DAY" is not a day anywhere else except on earth. As an extention, none of our other measurements of time apply anywhere except on earth. A day on another planey may be what we would call a month. A universal DAY, one could argue, is how long it takes our galaxy to revolve around the universal center. Either way, you can see that the raw value of time is really a measure of MOTION (in our case, the motion of the sun/moon/starts in relavance to our particular location on earth).

So forget everything you think you know about time. Convince yourself that there is no such thing as minutes, hours, days, years, months, centuries, etc., because we (man) made that all up to explain a phenomenon we couldn't adequately explain.

Only once you can picture TIME in the same way you picture the dimentions of a box can you understand how it naturally functions. Basically, each and every object has its own TIME measurement based (in Einstein's theory) on it's MOTION in comparison with ALL other objects of MASS in the universe.

So, each object has a RELATIVELY DEFINED length, width, height, and motion, meaning we only know how tall/wide/long/fast an object is when it is compared to all other objects in our collective experience then extrapulated into numeric formulas. It just so happens that we take for granted how complex the universal formulas for length, width, and height because we have so much experience with the natural forms of these dimensions that we take it for granted that we can easily conceptualize these dimensions, while our experiences with TIME as the RELATIVE MOTION dimention of this universe is limited to how we experience it here on this planet, which again is limited by our own lunar and solar cycles. Given the chance to measure (or even intuitively "feel" what we call time on millions of different planets for millions of years, we would easily understand it as well in the same way we understand the other dimensions.

Hope that helps others wrap their mind around general relativity.

2007-02-22 18:24:02 · answer #4 · answered by TopherM 3 · 0 1

foe the clock question from the clock that was on the planes point of veiw everything was normal. anyone on the plane would say the clock was going normaly if you looked at the other clock it would appear to be going faster. the thing is everything is related to your frame of reference.

2007-02-22 16:55:57 · answer #5 · answered by ui6fu6yujt c 2 · 0 1

Yes and that is why we can't travel at the speed of light...

2007-02-22 15:46:47 · answer #6 · answered by FreeRadical 3 · 1 1

I'm sorry, is there a question here?

2007-02-22 16:51:36 · answer #7 · answered by stargazergurl22 4 · 0 0

fedest.com, questions and answers