Postcard
Windows MD5 Sum generator.
From: Needham Massachusetts USA
Blurb:
MONOCHROMATIC LIGHT DEMONSTRATION
Museum of Science Boston Massachusetts
The view on the left side demonstrates monochromatic (one colour) light. Only
one colour is visible and all that you will ever see is different shades of
the colour. This monochromatic light was created through the use of a solium
vapor lamp thus creating only yellow light. The other view is seen under normal
white light which contains all the colours of the rainbow. Our sun produces
white light which allows us to see a great variety of colours - not only different
shades of one colour.