Nobel Media AB
The Nobel Prize: The Nobel Prize in Physics 1905
This Nobel E-Museum website commemorates the work of Philipp von Lenard and his Nobel prize achievement. This detailed resource includes a biography, Lenard's Nobel Lecture, and the "The Nobel Prize in Physics 1905 Presentation Speech."
University of Wisconsin
The Why Files: Power Plants
Photovoltaic technology is compared and contrasted to the natural phenomenon of photosynthesis. The means by which photocells harness solar energy is described and explained.
University of Wisconsin
The Why Files: Positive Energy
A novel idea for converting solar energy to electrical energy. A brief discussion of solar energy collection in space via satellites.