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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 |
| 8029329 | Drumming robotic toy A drumming toy is provided as having a center drumming apparatus and a pair of side drumming apparatus. The center drumming apparatus includes movable drumming pads with switches that activate when the pads are pressed downwardly. The activation controls sounds. The... | 10/04/2011 |
| 7356951 | Inflatable dancing toy with music An inflatable toy may include a housing, a balloon-like structure, a blower mechanism, a drive mechanism, and a motor. The balloon-like structure may include a base, an inflatable portion, and an inlet. The base and the inflatable portion may define an air storage a... | 04/15/2008 |
| 6882824 | Interactive teaching toy Embodiments of the invention are directed to educational toys. In one embodiment, the educational toy includes (a) a figure having an exterior surface, and wherein the figure has a chest, hands and feet, (b) at least one indicium on the chest of the figure, (c) swit... | 04/19/2005 |
| 6463257 | Interactive educational toy The present invention comprises a teaching toy that invites a child's interaction using an attractive play figure, for example a stuffed animal, to present more than one instructional modality in mixed formats. The child is presented with a declarative in... | 10/08/2002 |
| 6244960 | Tablet unit and virtual experience method The tablet unit 10 comprises a receiving antenna which is brought near a prescribed position on the tablet when the tablet unit is connected to the electronic device 12 and receives the scan signal supplied to the antenna line; operating means 38 which ha... | 06/12/2001 |
| 6132286 | Preparation of 1,2,5,6-tetra-hydro-3-carboalkoxypridines such as arecoline and salts of 1,2,5,6-tetrahydro-3-carboalkoxypridines and arecoline hydrobromide A process is provided for the preparation of 1,2,5,6-tetrahydro-3-carboalkoxypyridines of formula (III) ##STR1## wherein R is a straight or cyclic substituted or unsubstituted alkyl chain having 1 to 6 carbon atoms, phenyl C1-6 alkyl, ment... | 10/17/2000 |
| 6089948 | Banjo-playing toy A toy which simulates playing a toy stringed instrument is provided. The toy stringed instrument is attached to a body of the toy and a disc couples the body to the toy stringed instrument. A hand on the body is secured to the disc which rotates in respon... | 07/18/2000 |
