Faster-than-light experiments at home?

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The discussion centers on two proposed experiments to demonstrate faster-than-light (FTL) phenomena. The first involves using a laser pointer aimed at the moon, suggesting that if the dot is moved quickly enough, it could appear to move faster than light, though many argue that the speed of light remains constant to the observer. The second experiment discusses the movement of a vertex created by two overlapping sheets of paper, claiming that this vertex can achieve infinite speed without violating physical laws. Participants also explore the concept of apparent FTL motion in astronomical observations due to light travel time, emphasizing that while certain effects may seem FTL, they do not violate relativity principles. Overall, the conversation highlights misconceptions about FTL and the nature of light propagation.
  • #31
pallidin said:
OK, but if that is true, than I can transmit data FTL through vertex manipulation, so I question it's reality. Allow me to explain:
Using the 2 inclinded jaws as you described, the angle of separation(in this case) will cause a non-mass vertex movement to go FTL. Correct?
I can easily create sensors that determine whether or not a vertex exists at any given point. Agreed?
So, if I put a sensor at the beginning of the jaws to indicate vertex starting, and one at the end to indicate vertex arrival, the second sensor should "trigger" a vetex moment faster than C. Right?
With that I manipulate the jaws in Morse Code to transmit data FTL.

It's all true, except that you can't transmit data. You absolutely have to push the jaws together uniformly for the vertex to go FTL, such as with a uniform field pulling both jaws together, or one of them downward (gravity for example). To transmit data, you would have to be able to push the jaws together from one end, which you can't do (jaws are mades of interacting atoms).
 

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