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

At speed of light the time will stop relative to person on earth and the person can survivie for billions and billions of years. But i think there is a problem with accelerating a material object equal to speed of light.

2006-10-07 04:03:00 · 11 answers · asked by nicenustian 1 in Science & Mathematics Physics

11 answers

There is an incredibly simple answer to this.

Everyone seems to keep forgetting that speed is relative. To the person accelerating faster and faster, it is perfectly reasonable for that person to assume HE/SHE is at rest, and any observed objects are in fact the matter moving. He/She will observe an increase in mass of any observed objects, but will discern no change in his/her environment.

As the speed of c is neared relative to any observable objects, very odd optical effects will ensue. For one, I understand that all objects will appear to be behind the observer in a kind of horizon.

What matters, however, is that the traveller will not perceive any odd effects within his/her own environment (spaceship?).

Remembering of course that to the traveller, the universe in general begins to be perceived as moving faster and faster, and time dilation effects will begin to occur; ergo the universe will appear to slow in time. To the traveller, the universe is trying to accelerate, and IT will come close to a standstill. It is an asymptotic effect, and the traveller will never observe the universe at a relative speed of c.

To an observer an earth, the reverse is true. The traveller's mass will be perceived as increasing, and time flow will slow for the rocket's frame of reference.

The traveller, however, will suffer no ill effects; just be massively out-of-synch with his/her point of origin.

2006-10-07 07:45:48 · answer #1 · answered by Dan C 2 · 0 0

I don't think it would even be possible to accelerate someone up to that speed. If you reach the speed of light, the mass of the object will reach infinity and that is a mathematical "uh-oh" Mass will reach infinity and time will plummet to zero. The concept of travel at the speed of light in the real world is nonsensical.

2006-10-07 04:07:36 · answer #2 · answered by Jack 1 · 0 0

Yes, the closer you get to the speed of light, the more mass you gain. At close to the speed of light, you will gain too much mass, forcing you to slow down, since the bigger the mass, the more energy needed to accelerate it. This is why its impossible to get to that speed at present.

2006-10-07 04:11:01 · answer #3 · answered by Jimbo 6 · 0 0

Well theory tells us that any object bigger than a tachion (which is smaller than an atom), it's mass would expand to the point where it would probably take up the entire universe. Not to mention time would cease to exist for the object in motion. Therefore the person in motion nor any other living thing in the universe would probably not survive the trip.

2006-10-07 04:23:04 · answer #4 · answered by ossifer8301 2 · 0 1

Theoretically, it will take an infinate amount of energy. I don't see why the person should die, unless you accelerated them at 1000G/sec - then splat obviously.

Work it out, if you accelerated a person at 1G in space (so that all they felt was the equivalent of gravity), you can attain a high velocity in a remarkably short time.

2006-10-07 04:08:28 · answer #5 · answered by Bill N 3 · 0 0

One counter-intuitive prediction of the Theory of Relativity is: there is no 'absolute frame of reference'. An observer on earth would see time stopping for the ship. An observer on the ship would notice no change, but would see time on earth as stopped. It literally does depend on your point of view.

2006-10-07 06:59:04 · answer #6 · answered by STEVEN F 7 · 0 0

it is to do with the thought of particular relativity which in spite of what the 1st answerer tells you *has* been proved. Classical relativity (i.e. in the previous Einstein) understood that once you're in a physique of reference shifting at consistent velocity, issues shifting in direction of you seem shifting swifter and issues shifting remote from you appear to be shifting extra slowly. yet by using Einstein's time it became shown that no count what your physique of reference, the cost of sunshine became consistent. Einstein utilising this became able to plot countless thought experiments and calculations showing that the swifter your physique of reference is shifting (comared to a diverse physique of reference) the explanation became that element slowed down. So, your spaceship ought to be traveling on the brink of the cost of sunshine relatie to the Earth (which isn't table sure yet could be sssmed to be for the needs of comparision.) it is extremely morecomplicated and books or webpages, maybe with diagrams might clarify it extra perfect. in case you ever prefer to examine something that explains extremely some those scientific theries extra of course, i could reccomend George Gamow's" Mr Tompkins is going to Wonderland" and is the reason issues in a narrative-variety format. it is somewhat dated now yet unquestionably recommeded.

2016-11-26 22:56:59 · answer #7 · answered by Anonymous · 0 0

only light can travel at light speed

2006-10-07 04:09:47 · answer #8 · answered by gasp 4 · 1 0

No kidding. Until this can be done (not in our lifetime) speculate all you want. You will need top technical radar so you don't smash into anything.

2006-10-07 04:06:57 · answer #9 · answered by Anonymous · 0 0

He will turn to pure energy.

2006-10-07 05:40:22 · answer #10 · answered by Anonymous · 1 1

fedest.com, questions and answers