Result of a live feed of earth while traveling near light speed?

[withahow]

In theory, if you set up say a satellite camera pointed to a location in new york city, got in a space ship, turned on a tv with a live feed of the sim city like perspective of NYC, shot away going near the speed of light, would you start seeing time on earth progressing faster and faster?

 

[a_lost_packet_]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>In theory, if you set up say a satellite camera pointed to a location in new york city, got in a space ship, turned on a tv with a live feed of the sim city like perspective of NYC, shot away going near the speed of light, would you start seeing time on earth progressing faster and faster? <br /> Posted by withahow</DIV></p><p>IMO</p><p>If the speed of separation between Earth and the spaceship exceeded the speed of light then you'd never be able to get a signal so you wouldn't get any transmission unless you could somehow make the signal travel faster than light.&nbsp; But, until that time, you would see things slow down for NYC which seems counterintuitive.&nbsp; BUT... (see links)</p><p>http://en.wikipedia.org/wiki/Time_dilation</p><p>http://en.wikipedia.org/wiki/Relativity_of_simultaneity </p><p>Youtube: Physics for Future Presidents - Relativity: The Train Paradox </p> <div class="Discussion_UserSignature"> <font size="1">I put on my robe and wizard hat...</font> </div>

 

[withahow]

hmm... interesting.. so if you were to watch this TV and you zoomed away from earth, youd see the signal slow down.&nbsp; what if you then made a 180, and started zooming back to earth.&nbsp; would you then see time one earth rapidly speed up on this tv?

 

[neilsox]

You can expand = slow&nbsp;or compress = speed up&nbsp;the data rate by traveling away or toward the data source. The change is difficult to measure at normal speeds, but would double or halve at 1/2 c&nbsp;&nbsp; Neil