Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 6559454 | Ion beam generation apparatus An ion beam generation apparatus comprising an ion source (20) for generating ions, and a tetrode extraction assembly (11) comprising four electrodes for extracting and accelerating ions from the ion source. The extraction assembly comprises a source elec... | 05/06/2003 |
| 6515408 | Ion beam apparatus and a method for neutralizing space charge in an ion beam A source of thermionic electrons is provided inside the flight tube of a magnet, especially an analysing magnet, and extends along the beam flight path. This allows space charge to be neutralised along the beam's axis in spite of severely restricted elect... | 02/04/2003 |
