Slit images

Hello everyone--Happy New Year

I was recently in Tokyo on a business trip and didn't
have many early appointments. Tending to want to sleep
in, I would leave the heavy hotel room curtains closed
at night so the early morning sun wouldn't wake me.
One morning I was delighted to wake up to see an
upside-down image of the scene outside projected on
the walls of the room--created by a slit where the
curtains didn't quite close. Just goes to show that
even an extremely crude slit or hole will form an
image! Reminds me of my very first experiments with
pinholes in high school in the 70s--all I ever did was
punch holes in tin foil with a pin and then tape the
foil to a camera body. Worked fine.

Colin

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Received on Wed Jan 2 21:31:49 2002