[HN Gopher] The Sundial Cannon of Atvidaberg (2017)
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       The Sundial Cannon of Atvidaberg (2017)
        
       Author : choult
       Score  : 30 points
       Date   : 2024-10-15 18:28 UTC (4 hours ago)
        
 (HTM) web link (www.amusingplanet.com)
 (TXT) w3m dump (www.amusingplanet.com)
        
       | cscheid wrote:
       | Fun. It reminded me of the
       | https://en.wikipedia.org/wiki/Clock_of_the_Long_Now, which uses a
       | similar noon-sun mechanism for keeping the daily clock cycle
       | accurate.
        
       | olelele wrote:
       | My neck of the woods on the front page!
       | 
       | Adelsnas where the cannon is was built by some mining baron, as
       | far as i remember.
        
       | PlunderBunny wrote:
       | Why would a cannon be used instead of, say, striking a bell? Does
       | the sound travel better/further, or was it a display of
       | wealth/status?
        
         | p_l wrote:
         | The sound is hard to mistake for anything else and travels
         | better. Such cannons were used for synchronization of clocks on
         | ships for navigation, among other uses.
        
       | matsemann wrote:
       | But the sun isn't always at the same place at noon? So how is the
       | magnifying glass aimed?
        
         | Pengtuzi wrote:
         | Down and to the left
        
       | Animats wrote:
       | _" The 6-pound cannon is fired everyday at 1 PM, from May to
       | September."_
       | 
       | Not at local noon?
        
         | p_l wrote:
         | For navigational purposes you want your "noon" to be aligned
         | with a known datum, and that often was Greenwich meridian.
        
         | impossiblefork wrote:
         | Sweden user summer time, so we get up earlier during the bright
         | part of the year.
         | 
         | So it's still local noon.
        
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       (page generated 2024-10-15 23:00 UTC)