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Optical illusions
Driving at night along the long and straight west Texas highways I got a surprise:
I was board and began estimating the speed of the occasional on coming car by noticing how the apparent width of their headlights grew as they approached.
After twenty observations, an oncoming car appeared to be coming at over
500 mph. Seconds later, I realized that it was only
a motorcycle that had pulled out to pass a car that only had one headlight.
Wow, what a thrill.
My apologies in advance if this posting is not spot on to this thread.
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