Well, the modern highway bridge at Kaliningrad (Konigsberg) has no vehicular access, but it does have access for walking, so the walking tour of only 5 bridges now could still take place, with the same results. I never realized this was actually a historical place. I thought it was just a math puzzle.
Tom Laidlaw From: Dave Bell Sent: Monday, April 15, 2013 7:33 AM To: 'Perit Alexei Pace' ; [email protected] Subject: RE: Today's Google Banner Aside from its mathematical interest, the problem has long held a place in my heart, as we have two daughters adopted from Koenigsberg (OK, it’s been Kaliningrad since the War, but still the same city.) I’ve walked one of the bridges and visited Immanuel Kant’s cathedral, but didn’t have the time to stroll all the paths. Dave Bell -------------------------------------------------------------------------------- From: sundial [mailto:[email protected]] On Behalf Of Perit Alexei Pace Sent: Monday, April 15, 2013 2:55 AM To: sundial Subject: Re: Today's Google Banner The Konigsberg bridges dilemma is particularly intriguing when explained to the "non-mathematicians", I suggest you have a look at this for a thorough explanation http://www.ugr.es/~fmartin/gi/bridges.pdf Alex On 15 April 2013 10:21, Frank King <[email protected]> wrote: Has anyone else on this list enjoyed today's Google Banner? It includes: The celestial sphere Two Platonic solids The relationship... Vertices - Edges + Faces = 2 [This doesn't hold in pathological cases by the way!] The Seven-Bridges-of-Konigsberg problem A state diagram An argand diagram The relationship -1 = e^(i.pi) Frank King Cambridge, UK --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial -------------------------------------------------------------------------------- --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
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