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 |
| 6736903 | Method and apparatus for producing a work product A method for producing a work product including the steps of receiving a first fluid composed of a liquid, a target substance and at least one residual substance; passing the first fluid through a first work station for separating the residual substance from the fir... | 05/18/2004 |
