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"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 |
| 8120769 | Method and system for fiber properties measurement A fiber measurement system for precision measurement of individual fiber properties, including length and fiber length distribution is provided. The fiber measurement system includes a fiber introduction system configured to introduce a plurality of individualized f... | 02/21/2012 |
| 7375815 | Optical devices, systems and method for producing a collimated light path Devices, systems and methods are provided for producing a collimated light path. Theses devices, systems and methods may be used to determine an optical property of a small volume sample. ... | 05/20/2008 |
| 6052182 | Fiber quality monitor A fiber quality monitoring apparatus is constructed with a sample window for viewing a fiber sample. As the fiber sample passes the sample window, a bulb is strobed to produce a light pulse that is directed toward and reflected by the fiber sample. When t... | 04/18/2000 |
| 5639955 | System for automated calibration of sensors A system for calibrating sensors used in analyzing agricultural solids which includes a calibration paddle possessing one or more calibration tiles for calibrating sensors used in analysis of agricultural solids and a rotary actuator for reversible transl... | 06/17/1997 |
| 5245405 | Constant pressure gas cell A gas analysis cell having a pressure control system eliminates pressure variations in the gas cell regardless of changes in restriction, gas viscosity and barometric pressure. Since optical alignment through the gas cell is sensitive to gas pressure, mai... | 09/14/1993 |
| 5185639 | Fiber sample holder In a process for preparing and fixing samples of fibres to be analysed optically, a plurality of fibres (5) to be analysed is laid on a first transparent plate (2), the first plate (2) and the fibres (5) lying on it are covered by a second transparent pla... | 02/09/1993 |
