- #106
PAllen
Science Advisor
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Yes, that is right, visually. Of course, the time for the fence to go by completely will be straight Lorentz contraction, being yet another way to directly measure it.JDoolin said:You guys have gone into really subtle details that I hope to get into sometime soon. But I just wanted to come back to this simple statement about flat lines. I noticed that the link A.T. posted to actually shows videos of straight lines passing
• left-to-right in the distance (Lorentz Contraction at "small angle")
• right-to-left in the distance (Lorentz Contraction at "small angle")
• back-to-front underfoot (Lorentz + Moving Away)
• front-to-back underfoot (Lorentz + Moving Closer)
Now, what it doesn't show, is the "large angle", that is, if the camera panned to "the feet" as the lines passed underneath the observer. If you could imagine "strafing" a fence, you should expect that to one side, the fence should be obviously stretched (in the direction you're moving toward), and to the other side, the fence should be obviously contracted (in the direction you're moving away from), and directly in front of you, the fence should be as it is in the "Lorentz Contraction at 'small angle'" examples.
We're all agreed on this point, right?