nameta9 Posted August 28, 2005 Share Posted August 28, 2005 Take 2 squares (sheets of paper) and slide them over each other at right angles. the intersection is a still point. But if you tilt 1 square (sheet of paper) and slide them over, the intersection is a moving point. If you tilt it to a very narrow angle the intersection will exceed the speed of light. Is this a known result ? Link to comment Share on other sites More sharing options...
CPL.Luke Posted August 28, 2005 Share Posted August 28, 2005 no it won't exceed the speed of light. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted August 28, 2005 Share Posted August 28, 2005 A point doesn't have any mass anyways, so it really doesn't matter if it goes faster than the speed of light. I believe there was a discussion on a similar idea, in which a point of laser light would exceed the speed of light. Link to comment Share on other sites More sharing options...
Severian Posted August 28, 2005 Share Posted August 28, 2005 It will exceed the speed of light. This is a known result. More commonly this is described as a spotlight being swept over low clouds - the beam will 'move' over the clouds faster than the speed of light when the nagle approaches zero. However, there is no information flow so this does not violate Special Relativity. Link to comment Share on other sites More sharing options...
Teotihuacan Posted August 30, 2005 Share Posted August 30, 2005 It would still take whatever the speed of light for the spotlight to reach the clouds, before being reflected back, to seemingly a simultaneous illumination of the far clouds from the observers' effect. Is this much different than Davinci's insistance that the speed of light was infinite... and yet is calculated at approx. 300,000 km/sec. But, perhaps, it's not really a constant. Just a convenient mile post at the time. Link to comment Share on other sites More sharing options...
JohnB Posted September 5, 2005 Share Posted September 5, 2005 Is this like the extremely long pairs of scissors thing? BTW, what's a "nagle"? Link to comment Share on other sites More sharing options...
J.C.MacSwell Posted September 5, 2005 Share Posted September 5, 2005 Is this like the extremely long pairs of scissors thing? BTW' date=' what's a "nagle"? [/quote'] Torrel rotation. When an angle approaches the speed of light, it becomes a "nagle". As it exceeds the speed of light it's an "elgna". I thought everyone knew that! Link to comment Share on other sites More sharing options...
tomgwyther Posted September 16, 2005 Share Posted September 16, 2005 In the long scissors/two pieces of paper idea; Nothing is actually moving. No mass is being accelerated. No object is going from point A to point B. Moreover; If you put an object at the closing point of the scissors (I.E as if you were trying to cut it in half. but actually push it forward.) You would not be able to accelerate the object beyond the speed of light because you would need an infinate amount of energy to close the scissors. Link to comment Share on other sites More sharing options...
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