Author: sgolson

  • 1991

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    A solar eclipse occurs when the moon comes between the earth and the sun, and the moon casts its shadow on the earth. During totality the sun’s corona becomes visible as a white halo around the black disk of the sun. The sky darkens, but the entire horizon is lit with sunset colors. In this…

  • 1990

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    Mars through window screen. The central image is overexposed to enhance the diffraction effects. Taken October 12, 1988 Nikon F3 close coupled to Questar 3.5″ 1400mm, f/16, 8 sec on Kodachrome 64

  • 7th VLSI Technology, Inc. Users Group Meeting (1990)

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    Pushing the Envelope by Steve Golson and Scott Griffith Abstract: Use (and abuse) of VLSI Technology tools for full-custom design.

  • 1989

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    A lunar eclipse occurs when the moon enters the earth’s shadow. The Greek philosopher Aristotle observed that during a lunar eclipse the shape of the shadow seen on the moon is always round. The only shape that always casts a round shadow is a sphere; thus Aristotle concluded that the earth was spherical some eighteen…

  • 1989 Custom Integrated Circuits Conference (CICC 1989)

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    A 2K byte fully-associative cache memory with on-chip DRAM control by Scott Griffith and Steve Golson Abstract: A 2Kbyte cache memory with on-chip DRAM control has been built. The fully-associative write-back write-allocate cache is organized as 128 lines by 16 bytes. The part directly connects to and controls an array of 1 Mb DRAMs forming…

  • 1988

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    Iridescence in clouds is caused by diffraction of sunlight off cloud droplets of very uniform size. Such uniformity is characteristic of “young” clouds; older clouds have a wider distribution of sizes due to the coalescing of droplets. In cirrus clouds like these the diffracting agent may be tiny ice crystals or frozen droplets. Rainbows are…

  • 1987

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    Boston Sunrise December 1977 Minolta SRT202, 50mm, Kodacolor II 400

  • 1986

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    This photograph was made by aiming the camera at Polaris, the pole star. The earth’s axis of rotation points toward one spot in space, and in a time exposure photograph all the stars seem to revolve around that one point. Notice that Polaris is not exactly centered on the celestial pole but makes a tiny…

  • How this all got started

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    In 1984 I came across an advertisement in Sky and Telescope magazine for Winter Solstice Greeting Cards, published by Educational Greeting Cards of Urbana, Illinois. There were six different cover designs with scientific and historical themes. These were wonderful cards, and I thought they captured the holiday spirit in a beautiful non-religious fashion. Plus the astrophotographs used…