Since sound has to "travel",no matter how fast , wouldn't that put us all in a different time zones?
351090
being in different time zones is purely a human convention and not one related to the physics of time and space. \n\nif you mean different people will experience an event at different times even though it happened at one time due to the fact that sound has to travel then yes, an observer further from the sound event will percieve it later than another observer nearby.  \n\nnotice this only applies to purely "sound events" when there is no other way to experience the event.\n\nin the much larger cosmic terms, it is the speed of light which dictates all measurements and experiences because it is well established that NO information can be conveyed above that speed.
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.
383436
Since there are 24 hours in a day, I would say that they are the different time zones across the world!
95316
I believe yes.. It makes sense, You see all of these dimensions are just directions. If you say that the four dimensions are represented by X,Y,Z,T these are merely directions of dimensions then all of those are travellable (meaning you can travel in those directions). You can go to left & Right (X), You can go Forward & Backward (Y), you can go Up or Down (Z). The questions now is how do you travel through time. According to Albert Einstein if there is anything that can go faster than the speed of light then it will be possible to travel through time. It is actually true becuase our mind can go faster that speed of light that whay our mind can travel through time, sometimes we remember things in our past that the way our mind travels.
1113547
I have done time travel. Evertime I come back to California from Japan. I leave around 16:00 in Japan and get home around 09:00 . Sounds like time travel to me.
233087
this is where relativity comes into play. It depends from what viewpoint. speed is always relative to a "fixed" point (which might not be so "fixed" after all). get my drift?
971027
No. Einstein's theory of relativity is commonly misinterpreted by non-scientists as "proof" that time travel is possible. However, Einstein's theory states that time & perception of time travels relative to your location and your surroundings.\nThus, if you are moving in an extremely fast velocity, atoms will move much slower (time will move forward slower).\n\nThis does NOT mean that you can travel back and forth in time. Time is NOT a linear dimension in which we can move up and down. Time in the non-scientific laymen's sense is really just a "perception" and invented by people.
13175
The sound will reach the car in front of you.  Although it may seem as though it would not, considering that you are already traveling at the speed of sound, therefore you may think the sound waves go as the same speed as your car therefore not traveling any faster than you are and not getting to the car in front of you.  However, this is not the case.  This can be explained using Einstein's theory of relativity.  Einstein describes "frames of reference" and in your frame of reference, you are not moving; everything else is moving.  Everything in your car is stationary relative to everything else, this is why you don't feel like you're moving, and if you throw a book sideways, it doesn't fly backwards with the speed your vehicle is moving, this is because the car, yourself, and the book are all moving with the same speed your car is moving. They are all stationary relative to each other. When the sound waves are created, they move in all directions at the speed of sound (331 m/s), so in your frame of reference, they would be moving at 331 m/s away from the car in all directions.  This means from the frame of reference of a person standing outside of your car, the sound waves would actually appear to be moving at twice the speed of sound.  This is just like if you threw a ball forward out from the car at 15 m/s, it would appear to an outsider to be moving at that speed plus the speed of sound(well in a vacuum anyway, or before air resistance took over) To use a better example of these frames of reference, you know that the earth is rotating.  It is rotating at 1070 mi/hr at the equator, yet it seems not to be moving at all, it is our frame of reference when we are standing 'still.' the speed of sound is no different traveling in different directions on the earth because of this rotation.\n\nand yes, he would probably give you the finger. I mean, he is going at the speed of sound, how impatient are you?
797823
No. Time moves us all.
280177
Which time zone do you live in?
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 :)
728325
You are probably referring to UTC time (Coordinated Universal Time).  The offset for the central time zone would be UTC-5 during daylight savings time.
1050320
Since there are 27 integer time zones (from GMT - 12 hours to GMT + 14 hours), there's no way the whole world can have the same date at the same time, because there will always be points that are more than 24 hours apart, and those points (at least) will be in different days.
399954
SPEED=dy/dt=distance/time.its not exactly something you invent.it was an axiom,a basis of understanding.
135250
When you are sitting in an airplane, the air around you is traveling with you in that "bubble" which is the airplane.  Therefore, sound acts the same as it would on the ground.  Sound is carried in air (and to some degree, other materials), but not in a vacuum.  So the paradoxes which crop up about traveling faster than light do not apply to traveling faster than sound.
139666
I send mine and the time stamp is PST (Pacific Standard Time). My friend, 50 miles west of me and actually living ON the Pacifc coastline has an EST (Eastern Standard Time) stamp on his. We are smack in the middle of the Pacific Time zone. And the actual times of day don't make sense either. Go figure, huh?
476278
I've never found that, but I have found that at Daylight Savings Time, it will change.  It doesn't even sound plausible, but it always works like that. I'm really not sure why, but my mom and best friend have the same problem.  Who knows.