"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 |
| 6159371 | Constructed wetlands remediation system Constructed wetlands, utilizing a plurality of cells, in which nitrification and denitrification occurs simultaneously, at low flow rates and lower temperatures. The constructed wetlands provides improved remediation in a shorter period of time.... | 12/12/2000 |
| 6132762 | Transcutaneous application of marijuana A transcutaneous therapeutic formulation comprising marijuana and a carrier for the treatment of pain, inflammation, arthritis and related disorders in humans and animals.... | 10/17/2000 |