Kuka aloitti tutkimaan arjalaista fysiikkaa?
Philipp Lenard
 Philipp Lenardin elämäkerta Transclusion error: {{En}} is only for use in File namespace. Use {{lang-en}} or {{en icon}} instead.
 Lenardin Nobel-luento Transclusion error: {{En}} is only for use in File namespace. Use {{lang-en}} or {{en icon}} instead.
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