"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 |
| 6130608 | Lateral acceleration detecting device for vehicles This invention relates to a device mountable within a vehicle and connectable to a power source to monitor and warn drivers of the lateral g-forces being experienced by the vehicle during use. The device comprises an accelerometer means comprising an acce... | 10/10/2000 |