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 |
| 6771494 | Portable computer usable in laptop and tablet configurations Embodiments of the present invention are directed to a portable computer, such as a laptop or notebook computer, a subnotebook computer, a personal digital assistant, a wireless phone or the like, that can be set up in a closed configuration, a laptop configuration ... | 08/03/2004 |
