Date: April 15-16, 1972
Attendance: 240The San Francisco Sidewalk
Astronomers again made their appearance. In keeping with the times, they were painted up
their telescopes in "flower power" colors with large astronomical symbols on the
side of the tubes. I am sure that the conservative amateur astronomy crowd was befuddled
by this new development.
Speakers
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John Dobson, "Grinding Large Off-axis
Paraboloidal Mirrors" |
 |
Raymond G. Coutchie, "Marriage and
Astrophotography" |
 |
John Laborde, "Construction of a Mirror
Grinding Machine" |
 |
Arthur DeVany, "Using a Double-Wire Test and
Laser Interferometer in Figuring Optical Elements" |
 |
Maurice V. King, "Using Grooved Tools to Give
a High Quality Finish" |
 |
George Carroll, "Using a Birefringent Filter
to Observe the Sun" |
Merit Awards (partial list)
 |
Norman James, 1st Place for Optical Design -
12-1/2" f/5 |
 |
Norman James, 1st Place for Mechanical Design -
12-1/2" f/5 |
 |
John Dobson and Brian Rhodes |
 |
George McArthur, 8" f/7 Newtonian |
|