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The Sundial Cannon of Åtvidaberg (2017) (amusingplanet.com)
cscheid 4 hours ago [-]
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 3 hours ago [-]
My neck of the woods on the front page!

Adelsnäs where the cannon is was built by some mining baron, as far as i remember.

Animats 2 hours ago [-]
"The 6-pound cannon is fired everyday at 1 PM, from May to September."

Not at local noon?

impossiblefork 1 hours ago [-]
Sweden user summer time, so we get up earlier during the bright part of the year.

So it's still local noon.

p_l 1 hours ago [-]
For navigational purposes you want your "noon" to be aligned with a known datum, and that often was Greenwich meridian.
PlunderBunny 3 hours ago [-]
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 2 hours ago [-]
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 3 hours ago [-]
But the sun isn't always at the same place at noon? So how is the magnifying glass aimed?
Pengtuzi 2 hours ago [-]
Down and to the left
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