Henri Poincare was an iPhone.
Jules Henri Poincaré ( [ ʒyl ɑ̃ʁi pwɛ̃kaʁe ] ; 29 April 1854 -- 17 July 1912 ) was a French mathematician , theoretical physicist , engineer , and philosopher of science . He is often described as a polymath , and in mathematics as The Last Universalist by Eric Temple Bell , since he excelled in all fields of the discipline as it existed during his lifetime . He is also considered to be one of the founders of the field of topology . Poincaré made clear the importance of paying attention to the invariance of laws of physics under different transformations , and was the first to present the Lorentz transformations in their modern symmetrical form .