theory of relativity
@navintiwari08 (38)
India
January 12, 2011 7:29am CST
great physicist of all time- sir Albert Einstein. he is the father of photoelectric effect for which he got the noble prize. one of his theory, theory of relativity is quite mind boggling and amazing.. though it gives the energy mass equation.. but also it gives a relation between the rest mass of the body and its moving mass.
m = m0 /v(1-v2/c2).
it says that as the body moves with a greater velocity,its mass increases and no particle in universe can exceed the speed of light. this is very much clear from the equation. the thing which is little confusing is that if a particle moves with the speed of light or very near to speed of light then the time slows down. for example if you are on a train and the train starts moving with a velocity near that of speed of light then the clock inside the train slows down compared to outer atmosphere. can anyone please explain me this in terms of equations and proper reasoning..?
3 responses
@daudzaid1 (54)
• India
14 Jul 11
there is a book by Arthur Beiser ,Concept of Modern Physics in which this thing is explained in detail in a nice manner and is easier to understand. Here is a link to his facebook page http://bit.ly/nZUD6U
@penrockerchic (1903)
• Philippines
15 Mar 11
Quite difficult to explain. But in a theoretical analysis that I have read somewhere it mylot. If a body gets to surpass the speed of light then time travel can be possible. I forgot the title of the discussion I read before but it sure says something like that. If, and only if, we can beat the speed of light then we can actually advance in time just for a particular time or so. This is what I know. Thanks for reading.
@reymamangun (12)
• Philippines
9 Mar 11
When you look at the star billion light years away, you are actually looking at the star billion years ago. Therefore, we are not just separated by space but time as well. If man A communicates with man B at certain distance with a radio, it will take some very small fraction of second before radio wave can reach man B. Radio wave travels at the speed of light. The voice of man A to man B retains its quality only slightly delayed. If man A travels away from man B at half the the speed of light, aside from the delay, the voice quality of man A to the perception of man B will change, it will have a lower pitch and the message itself will slow down. As if the time in man A slows down. Why? Because as you travel away from the point of observer, the rate of sent information will slow down too relative to the observer. But if you go to man A, the time is normal, the time of man A slows down only to the perception of man B. This is just a simple explanation. But if you consider everything, space, time, mass and energy, it's complicated to explain. When you look at the star with a telescope, you must also consider the time the light reaches your eye and the speed of the star moving towards or away from you. It will take a lot of mathematical knowledge far more complicated than Newtonian mechanics.
