Sundial   51

  • Dial City:    Gaithersburg
  • Dial State/Province:    Maryland
  • Dial Country:    USA
  • Lat:  39° 8.683' N
  • Dial Nr:    51
  • Dial Type:    Polar Dial
  • Dial Access:    Public
  • Lon:  77° 13.450' W
  • Dial Owner:    NIST
  • Dial Designer:    R. N. Mayall
  • Dial Maker:   
  • Dial Date:    1948, August 13
  • Location:
  • National Institute of Standards & Technology. Inner courtyard
  • Description:
  • Briggs Commemorative Sundial. One of the more complex and elaborate ones in the US. The dial plate lies parallel to the earth's axis of rotation. The dial has three gnomons. The upper and lower point out Eastern Standard time, the middle one indicates local apparent (solar) time throughout the year. A copy of the brochure is in the NASS Archives.
    Other References:
  • Mayall, photo p.110, description, p.232-33.
  • Commemorative Sundial brochure published by NIST.
Last Update: 2019-07-31 22:04
quickq官网下载quickq下载quickq vpn官网下载quickq vpn下载