Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| D494148 | Liquid crystal display monitor with a translucent base | 08/10/2004 |
| 6769818 | Transceiver module with a clipping device used in an optical fiber communications system A transceiver module is used in an optical fiber communications system. The optical fiber communications system includes a housing, a connector for connecting with the housing, an optical sub assembly (OSA) installed within the connector for receiving or emitting op... | 08/03/2004 |
| 6639501 | Low voltage bobbin of a flyback transformer A low voltage bobbin includes a core portion, a base portion, a plurality of insertion pins formed on an outer wall of the base portion, and a wire winding rod axially extending from each of the insertion pin. The thickness of portion of the outer wall of... | 10/28/2003 |
