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The bridge and torch problem (also known as The Midnight Train [1] and Dangerous crossing [2]) is a logic puzzle that deals with four people, a bridge and a torch. It is in the category of river crossing puzzles , where a number of objects must move across a river, with some constraints.
By way of specifying the logical task unambiguously, solutions involving either reaching an island or mainland bank other than via one of the bridges, or; accessing any bridge without crossing to its other end; are explicitly unacceptable. Euler proved that the problem has no solution.
Well-known river-crossing puzzles include: The fox, goose, and bag of beans puzzle, in which a farmer must transport a fox, goose and bag of beans from one side of a river to another using a boat which can only hold one item in addition to the farmer, subject to the constraints that the fox cannot be left alone with the goose, and the goose cannot be left alone with the beans.
Brownian motion, pinned at both ends. This represents a Brownian bridge. A Brownian bridge is a continuous-time gaussian process B(t) whose probability distribution is the conditional probability distribution of a standard Wiener process W(t) (a mathematical model of Brownian motion) subject to the condition (when standardized) that W(T) = 0, so that the process is pinned to the same value at ...
abandoned rail bridge: Western Maryland Railway abandoned rail bridge: Western Maryland Railway US 522 Bridge US 522: Morgan County / Hancock: Lurgan Subdivision Bridge CSX Lurgan Subdivision: US 11 Bridge US 11: Falling Waters / Williamsport: I-81 Potomac River Bridge I-81: Falling Waters / Williamsport Railroad Bridge Berkeley County ...
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Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... John E. Cox Memorial Bridge: Bridge Street 1937 (Crossing dates to 1830s [4
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