Quotables
"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7437239 | Method and device for determining the minimal cost path between two points in a road network The invention relates to a network comprising numerous nodes which are paired by means of segments. The inventive method consists in: allocating a cost to each segment in the network; producing two path graphs, essentially from two points respectively; interrupting ... | 10/14/2008 |
