1. Lenard - Noun
2. Lenard - Proper noun
German physicist who studied cathode rays (1862-1947)
Source: WordNetAstrophysics and the Pauli principle Dyson and Lenard did not consider the extreme magnetic or gravitational forces which occur in some astronomical objects. Source: Internet
He built a Crookes tube (later called a "Lenard tube") with a "window" in the end made of thin aluminum, facing the cathode so the cathode rays would strike it. Source: Internet
Philipp Lenard also contributed a great deal to cathode ray theory, winning the Nobel prize for physics in 1905 for his research on cathode rays and their properties. Source: Internet
David Hammerman, Lisa Lenard, The Complete Idiot's Guide to Reincarnation, Penguin, p.34. Source: Internet
In 1902 Philipp Lenard discovered that the energy of these ejected electrons did not depend on the intensity of the incoming light, but instead on its frequency. Source: Internet
It has been suggested that at least some of these "Lenard rays" were actually X-rays. citation Hermann von Helmholtz formulated mathematical equations for X-rays. Source: Internet