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 |
| 4405627 | Diphenylpropylamino-pyridine compounds useful as medicines Novel diphenylpropylamino-pyridine derivatives of general formula: ##STR1## are described and the spasmolytic, miorelaxing and local in vitro and in vivo anesthetic properties of some of them are given on the basis of experimental data as resulting f... | 09/20/1983 |
