KnowraPhilipp LenardLinked fromLinked fromThe 4 pages that link to Philipp Lenard, each with the reason it gives.All 4Related 4Photoelectric effectRelated: His measurements established key features that classical wave theory could not explain.Heinrich HertzRelated: Lenard extended observations of light-sensitive sparks that Hertz had reported.Wilhelm RöntgenRelated: His cathode-ray experiments supplied the apparatus and research context for Röntgen’s investigation.Johannes StarkRelated: Stark and Lenard allied in promoting Deutsche Physik and opposing what they called Jewish physics.