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davey2222

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Posts posted by davey2222

  1. I copied and pasted the following from Unexplained-mysteries.com:

     

    "Imagine an electromagnet, hooked up to some energy source. Attached to it by a frame is a piece of iron, at some distance from the magnet. The electromagnet is switched on for a fleeting instant, and then switched off again. Its magnetic field travels out in all directions as a wave, propagating through space at light speed, about 300,000 kilometers per second. When it reaches the piece of iron, the iron is pulled toward the electromagnet, and its own magnetic wave travels back to the electromagnet. But by the time the wave reaches it, the electromagnet has been switched off…so it is not attracted toward the iron. The forces within the system are unbalanced, and there is an “impossible” net momentum in one direction. The entire apparatus, including the piece of iron, is accelerated in that direction."

  2. Here are my speculations:

     

    1. Perhaps there exists a non-EM signal which propagates at infinite velocity.

    2. Maybe at a higher dimension particles are all connected and it takes zero time for the flow of information from particle to particle.

    3. Or the information moves into another dimension, travels at finite speed but backward in time, and emerges and show itself at the other location in our dimension.

    4. Someone made a mistake in the entanglement experiment.

  3. Interesting.

     

    But even if the earth's rotational (or translational) kinetic energy is used up in blue-shifting a photon, its gravitational field is still there. Then further blue-shifting through the g-field will result in what? Perhaps you meant to ask if the g-field will become weaker instead?

  4. That length in Biot-savart law is for the geometry of the conductor so I think it does not depend on length in this case. Your question did say the geometry was a straight conductor. My answer to the question would be current alone.

  5. This is what i learned in my university: whether light behaves as a wave or particle depends on the experiment, or detection, method.

     

    If we talk about a receiving antenna then assume light behaving as waves. For the photoelectric effect then assume particles. Double-slit experiment then waves. Etc.

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