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Old Sep 24th 2019, 06:28 PM   #31
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I know like your X4 idea, but I have asked you to start posting in a new thread in the Lounge. Please stop making posts in this thread about X4. I have found very little to use in terms of predictions or structure. There is nothing about X4 to warrant calling it a "Common Misconception."

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Old Sep 25th 2019, 03:55 PM   #32
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Originally Posted by neila9876 View Post
Assume a photon moves in a reference frame, the angle with x axis is . See the attached picture.
Then, the component of light speed along x axis is:
A.Cx = c*cos
B.Cx = c
C.No one knows.
Thank you.
Sorry about not getting back to you (neila). I was trying to come up with a particle representation of your question, as well as a version including a massive particle. I couldn't figure that one out. But, as the question involves photons anyway, I can work with it.

The answer to your question is that the velocity component in the x direction is equal to c. This is from Huygen's principle.

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