...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 |
| 7360257 | Bib with adhesive strip A bib for protecting clothing worn by a wearer includes a sheet having front and back surfaces, an adhesive strip located on the back surface of the sheet and configured and dimensioned for adhering the sheet to the wearer, and a sealed package attached to the sheet... | 04/22/2008 |
| 6189541 | Method and machine for creating nail art on person's digit A hand operated self-contained machine made out of molded plastic for applying an image on a nail of a person's digit or a golf ball includes a base frame including side rails. An element is provided to establish a reference point. An image creating holde... | 02/20/2001 |