"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 |
| 5574786 | Securing trusted personal computer system against unauthorized movement A personal computer system is described, having security features enabling control over access to data retained in such a system. The system has a normally closed enclosure, at least one erasable memory element for selective activation to active and inact... | 11/12/1996 |