Roy's Postcards: 1983/09/06

Inscription:

Daddy & Rob went hiking in Griffith Park and brought me this postcard. I helped Mommy fix the peaches for pies.

Postcard back:

MATHEMATICS AND PHYSICS
Artist: Hugo Ballin
Griffith Observatory
Los Angeles, California

First is a Greek geometer, whose work derived from the Egyptians. Their influence is shown by the god Thoth, behind. An Arab points out the important mathematical contributions of his culture. Sir Isaac Newton, originator of calculus, talks with students on the right.

See also: griffith-observatory

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