I am a high school student and just yesterday my teacher asked me-Is time relative or constant?
360918
time is relative. perhaps you can use this example: two twin brothers which born in the same time, the first one live on the earth and the other one live in the spaceship outside the earth's atmosphere, for a several years. when the second one returns to earth, the age of the twin brother is not the same. the reason? it's relativity, einstein told about this long time ago.
929095
Yes it is consistent with Special Relativity. K is not advocating time travel or travelling faster than the speed of light, nor any other Relativity flaunting theory. He is merely stating you can not live in the past, nor understand life by predicting the future.
169854
Of course.  We all travel forward in time, at a rate of 1 second per second.  ;)\n\nBTW, in the time dilation examples cited here, you don't actually travel back in time, it's just that one object travels forward in time at a slower rate as observed from the other reference frame.
125374
this is a sincere question   that  sure opens  more questions.....including  memory functions....there is much  misuse today  and  much misleading  ...how can i  call it  even  information....but  try  any  mathamatical  formula  with  time  in  it  sit  back  and  ponder  the  various  integrations  that  time  takes part  in.......try  many  formulas......time  may not  be  only a clock....check  into  what  physics  calls  a  half life...but  also  wonder  what  produced that  to  get  it  there.....interesting   spell  time  backwards...you get?.....as far  as  travel....or  what  is  backwards  or  forewards......remember  the  guy  who  jumped  out  of  his  bath  and  ran down  the street   yelling    i have  found  it......thats  what  happens to  most  of  us  ...when  we  reach  a degree  of  exploratory  freedom....good  luck...hope  this  helps
706869
There are no terms for that.  Time is artificial. You can use whatever you want.  I would say "our clocks".
918805
Time And Relative Dimension In Space
471623
elasticity of time refers to its non-uniform nature according to the theory of relativity.\n\naccording to einstein's work, time is experienced differently by different observers depending on their motion and acceleration ( gravity ).  \n\nthe take home message is that time is not absolute but an observer related measurement. this result is an extension of the assumption that the speed of light is always fixed for ALL observers.
1022249
In a colloquial manner: GOD > TIME
136568
well, we all assume that time flows in one direction and one thing follows another. Maybe that's just the way we see it. Try to imagine that you were a cartoon, 2D on a page, you have no concept of the 3rd dimension. If we could se everything that had happened at once, time wouldn't be linear but I digress. In effect non-linear time means that one thing would not necessarily come after the other e.g. I wrote this 'before' you asked the question.
792607
0 km/hr^2 .... because your speed doesn't change with time due to constant as you mentioned
465970
It's impossible to describe time because the past can be the present for someone, or the future for another person. The present can be the past for someone and the future for someone. Also, if time is always passing, then there is no stable moment in times passing because it goes down to the most infinently small amount of time in between things happening. As it goes down in infinity, time doesn't really exist, but it has to, otherwise everything would stop.\n\nI suppose that was confusing. Well, it's what I think.
471434
The same time as it was one second ago. The only reason it would change would be if the time was like 8:21:59; one second from that would be 8:22.\n :)
630244
No not at all. This concept has been tested on more than one occasion. The faster a body moves the slower time passes relative to that person. This was tested by getting two superbly accurate atomic clocks were taken. One was left on earth and another was taken up in a jet plane. When the plane landed the clock on the plane was observed to be a couple fractions of a second behind the clock on earth. \n\nThe equation for this difference is:\n\ndelta T(stationary)=(1/sqrt(1-v^2/c^2))*delta T(moving)\n\nNot to be disrespectful but why are most of your questions concerned with doubting the theories that Einstein has put forth. Almost all of his theories have been tested and confirmed to extremely high degrees of accuracy
377043
Time is the same for everyone and everything in the same situation, but time is relative (I.e. Time goes faster at the top of a mountain, due to gravity & speed etc.)\n\nI doubt most creatures acknowledge time intervals though, if you mean time as a human concept. More intelligent animals can probably distinguish between a week and a day, (I.e. A large difference in time) but maybe not an hour and three hours.
461508
what does that mean?\nErr, atomic clocks adjusted back 1 second every few years to compensate for the earth slowing?\nMetric clock instead of 24 hour/60 minute?\nWhat are you asking?
893783
Time is always now, now, now. We only really are certain about the present; our memory & evidence of the past, and our ;assumptions about the future. The past and future dont really exist, because they  dont exist now. The past used to exist, but doesnt exists now except what we know about it. The future will exist but doesnt exist now and so we don't experience it. \n\nTime continues on at a steady pace all the time as far as we know. There are theories that time has relation to other things, that time is affected as you approach the speed of light, but we haven't fully explored this theory. \n\nTime exists as more then that but only as a concept. We have words for many things that don't exist or that exist only as concepts.
783727
The passing of time is unique to each and every observer - relative. Since every single person occupies a unique portion of time/space at any given time, their perspective to events and durations is diffirent, also state of mind seems to have an effect as to how observant we are to the passing of time.