Emmanuel Carvallo (1856–1945) was a French
mathematician born in
Narbonne. He is notable for showing in 1897 that
bicycle
A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered transport, human-powered or motorized bicycle, motor-assisted, bicycle pedal, pedal-driven, single-track vehicle, with two bicycle wheel, wheels attached to a ...
s could be
self-stable,
for opposing
wave models of
X-ray
An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays. Roughly, X-rays have a wavelength ran ...
s in 1900, and for claiming in 1912 that
Einstein's Theory of Relativity had been proven false.
References
French mathematicians
{{France-mathematician-stub