For in 1900 all electromagnetic radiation of longer wavelengths was already known at least to the extent that one could not seek in it the more striking characteristics of X-rays such as, for example, the strong penetrating power.
| Ronnie Barker, Comedian (1929) |
| Mario Diaz-Balart, Politician (1961) |
| Robert M. Gates, Politician (1943) |
| Mark Hamill, Actor (1951) |
| Felicity Kendal, Actress (1946) |
| Don Adams, Comedian (2005) |
| Billy Carter, Celebrity (1988) |
| Marvin Davis, Businessman (2004) |
| John M. Ford, Writer (2006) |
| Johann Heinrich Lambert, Mathematician (1777) |
| Ring Lardner, Comedian (1933) |

