Prosper-René Blondlot

Prosper-René Blondlot
Circa 1910 photograph of Prosper-René Blondlot
Born(1849-07-03)3 July 1849
Nancy, France
Died24 November 1930(1930-11-24) (aged 81)
Nancy
EducationUniversity of Lorraine
Known forDetermining the velocity of radio waves, N rays
AwardsPrix Leconte of the French Academy of Sciences
Scientific career
FieldsPhysics
InstitutionsUniversity of Nancy

Prosper-René Blondlot (French: [pʁɔspɛʁ ʁəne blɔ̃dlo]; 3 July 1849 – 24 November 1930) was a French physicist, who in 1891 made the first measurement of the speed of radio waves, but is now mostly remembered for his "discovery" of N rays, a phenomenon that subsequently proved to be illusory.