@ Piyush Ojha Is this an offer? 11:48 May 13, 2013
do you have an italian edition of the autobiography?
p.s. Apparently Cardano rediscovered the universal joint as against 'inventing' it, in as much that it was being used by the ancient greeks "The invention of this type of joint is to be collocated atleast to the 3rd century BC, at the hands of Greek scientists like Philo of Bysantium, who describes it clearly in his work, Belopoiika. Other than that, starting in the 4th century BC, with the invention of the catapult, it was being used to arm the weapon. It was rediscovered in 1545, by the Italian mathematician Gerolamo Cardano (1501-1576)" |