| 1 | Henri Poincaré, one of the leading mathematicians of the day, called it a "disease." | |
| 2 | Marie Pierre Curie and Henri Becquerel were nominated for the Nobel Prize in 1902, but didn' t win. | |
| 3 | Another scientist named Henri Becquerel had observed the same phenomenon when the plates were placed underneath a uranium salt, and placed in the sun. |