Sundial   482

  • Dial City:    Palo Alto
  • Dial State/Province:    California
  • Dial Country:    USA
  • Lat:  37° 25.669' N
  • Dial Nr:    482
  • Dial Type:    Vertical Dial
  • Dial Access:    Public
  • Lon:  122° 10.432' W
  • Dial Owner:    Stanford University
  • Dial Designer:    Prof. Ronald N. Bracewell
  • Dial Maker:    Mark C. Bracewell
  • Dial Date:    1995
  • Location:
  • Stanford University South wall of Jen-Hsun Engineering Center
  • Description:
  • A vertical declining dial approximately 45 x 55 inches. Made of aluminum and brass. Shows the hours from 8 am to 5 pm using analemmas. Analemmas are bounded by the summer and winter solstices and a straight line through them shows the equinox. Daylight time is shown using Roman numerals, with standard time shown in Arabic. In keeping with the motto, a simple equation is written on the dial face, d/dt is not equal 0. Designer Ronald Bracewell used an oculus, a disk with a central hole, standing 8 cm in front of the dial face. The disk casts a shadow with a bright sunlight dot to indicate both time and season. Hour lines include longitude correction. This has been relocated; it was previously hanging free below a south facing wall, facing the Terman Engineering Building. Dial is now located on the wall of a covered walkway area.
  • Inscription:
  • "Caelum Srutando Leges Motus Didicimus" (We learnt the laws of motion by studying the heavens)
Last Update: 6/15/2013 15:08
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