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125 Years of Longitude 0 0' 00" At Greenwich

An anonymous reader writes "This week marks the 125th anniversary of the International Meridian Conference, which determined that the prime meridian (i.e., longitude 0 0' 00") would travel through Greenwich, UK. One of the reasons that Greenwich was agreed upon 'was that 72% of the world's shipping already depended on sea charts that used Greenwich as the Prime Meridian.' Sandford Fleming's proposal of a single 24-hour clock for the entire world, located at the center of the Earth and not linked to any surface meridian, was rejected / not voted on, as it was felt to be outside the purview of the conference."

3 of 429 comments (clear)

  1. Happy birthday to 180th meridian too ! by ls671 · · Score: 4, Informative

    And don't forget the 180th meridian that came with it. When you cross the 180th meridian, you have to set your watch back/forward 23 hours !

    Quite a few people are unaware of it ;-))

    http://adsabs.harvard.edu/full/1919PA.....27..416F

    --
    Everything I write is lies, read between the lines.
  2. Re:Not true for WGS84 by iYk6 · · Score: 4, Informative

    Your link says nothing at all about WGS84. Here is one that does: http://en.wikipedia.org/wiki/World_Geodetic_System

  3. NTSC came much earlier. by ThrowAwaySociety · · Score: 4, Informative

    - Video. The PAL standard is better quality than NTSC (Never The Same Color), so why did the Americas adopt an inferior option?

    That's sort of like asking why we adopted the clearly inferior analog STDV standard instead of digital HDTV. NTSC was standardized in 1953, PAL was not standardized until 1963. Naturally, PAL was the superior standard...it was based around technology that was ten years more advanced.