...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 |
| 7233080 | Method for processing detection signals for a motor vehicle The invention concerns a method for processing a motor vehicle detection signals. It consists in taking into account data concerning the surroundings to interpret the detection signals and deliver actuating signals. The invention also concerns a device for implement... | 06/19/2007 |