Editing Talk:2694: Königsberg
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+ | ; Aluminum foil | ||
Why would aluminum foil be valuable? I can see how it would be hard to produce at the time. But how would it be used and why would people of the time see a lot of value in it? [[Special:Contributions/172.71.146.65|172.71.146.65]] 03:42, 5 November 2022 (UTC) | Why would aluminum foil be valuable? I can see how it would be hard to produce at the time. But how would it be used and why would people of the time see a lot of value in it? [[Special:Contributions/172.71.146.65|172.71.146.65]] 03:42, 5 November 2022 (UTC) | ||
:Good question, but I'm persuaded the novelty and scarcity of metallic aluminium would have made it plenty valuable among those already wealthy enough to recognize what it was. Prussia was wealthy and Königsberg was its largest port city back then, so probably the mayor would have been able. [[Special:Contributions/172.70.206.205|172.70.206.205]] 03:49, 5 November 2022 (UTC) | :Good question, but I'm persuaded the novelty and scarcity of metallic aluminium would have made it plenty valuable among those already wealthy enough to recognize what it was. Prussia was wealthy and Königsberg was its largest port city back then, so probably the mayor would have been able. [[Special:Contributions/172.70.206.205|172.70.206.205]] 03:49, 5 November 2022 (UTC) | ||
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:Proving that a problem has no solution is still called solving it in math and logic. [[Special:Contributions/172.70.211.126|172.70.211.126]] 15:34, 5 November 2022 (UTC) | :Proving that a problem has no solution is still called solving it in math and logic. [[Special:Contributions/172.70.211.126|172.70.211.126]] 15:34, 5 November 2022 (UTC) | ||
::That's solving the issue of the solution (if you've proved there is none), at the meta- level. It is described as a "negative resolution" in the primary wikilink, which adds another semantic complexity but at least points to what was proven. Right in its first paragraph. For the everyday reader that hasn't yet burrowed into the wikilink, and without in-depth knowledge of terminological scope, they shouldn't be given the wrong idea about what question was actually answered. And "We've solved it: there's no solution!" is not a particularly helpful reduction of this kind of outcome. [[Special:Contributions/172.71.178.207|172.71.178.207]] 16:53, 5 November 2022 (UTC) | ::That's solving the issue of the solution (if you've proved there is none), at the meta- level. It is described as a "negative resolution" in the primary wikilink, which adds another semantic complexity but at least points to what was proven. Right in its first paragraph. For the everyday reader that hasn't yet burrowed into the wikilink, and without in-depth knowledge of terminological scope, they shouldn't be given the wrong idea about what question was actually answered. And "We've solved it: there's no solution!" is not a particularly helpful reduction of this kind of outcome. [[Special:Contributions/172.71.178.207|172.71.178.207]] 16:53, 5 November 2022 (UTC) | ||
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::...ok, so looking at it myself, maybe [https://www.explainxkcd.com/wiki/index.php?title=2694:_K%C3%B6nigsberg&diff=298234&oldid=298231 this change] removes both parties' objections. (Probably not, but perhaps a way ''towards'' a final rapprochement.) [[Special:Contributions/172.70.85.24|172.70.85.24]] 17:02, 5 November 2022 (UTC) | ::...ok, so looking at it myself, maybe [https://www.explainxkcd.com/wiki/index.php?title=2694:_K%C3%B6nigsberg&diff=298234&oldid=298231 this change] removes both parties' objections. (Probably not, but perhaps a way ''towards'' a final rapprochement.) [[Special:Contributions/172.70.85.24|172.70.85.24]] 17:02, 5 November 2022 (UTC) | ||
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I read somewhere (maybe some Martin Gardner book?) that nowadays in Koenigsberg (or Kaliningrad as it is called today) there IS an eight bridge. But I couldn't confirm it.--[[Special:Contributions/162.158.129.49|162.158.129.49]] 17:26, 5 November 2022 (UTC) | I read somewhere (maybe some Martin Gardner book?) that nowadays in Koenigsberg (or Kaliningrad as it is called today) there IS an eight bridge. But I couldn't confirm it.--[[Special:Contributions/162.158.129.49|162.158.129.49]] 17:26, 5 November 2022 (UTC) | ||
: There's a link to the Google Maps aerial view in the map caption. [[Special:Contributions/172.70.210.242|172.70.210.242]] 20:31, 5 November 2022 (UTC) | : There's a link to the Google Maps aerial view in the map caption. [[Special:Contributions/172.70.210.242|172.70.210.242]] 20:31, 5 November 2022 (UTC) | ||
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