|James Bradley electromagnetism
Aberration of light
James Bradley used the apparent slant of starlight to show that the speed of light is finite, and to calculate its speed to be 10,210 times faster than Earth in its orbit.
It’s not where it seems
Hans discovered that the light rain that slanted toward him
when he moved with the light wind slanted away from him
when he stood still.
Starlight moves; Earth moves in a frame of reference that feels motionless, which is why, it seems, rain that falls hits us in the face and telescopes pointed at a star slant toward the way we orbit.
Aberration of sight
My brain fills in for my blind spot. Two faces become a candlestick. A distant lake disappears as I approach. A mote flies in my eye. I blink and then it isn’t there.