The side lengths of a right triangle form a so-called Pythagorean triple. A triangle that is not a right triangle is sometimes called an oblique triangle. Special cases of the right triangle include the isosceles right triangle (middle figure) and 30-60-90 triangle (right figure).
The first pacemaker was implanted on 8th October 1958 in a 43 year old man called Arne Larsson with complete heart block and Stokes-Adams attacks. Technological innovations between 1973 and 1980 rendered obsolete the reliable pacemaker of 1970.
In 1892 Stucchi Prinetti & Stucchi began manufacturing bicycles. In 1914 Alfonso Calzolari rode a Stucchi to victory in the Giro d'Italia, and the 1919 Giro d'Italia was won by Costante Girardengo on a Stucchi.n 1899 Prinetti & Stucchi started manufacturing motorized tricycles and quadricycles. The Tipo 1, a motorized tricycle utilizing two De Dion engines and a Rochet-Schneider frame, was designed by Ettore Bugatti. In 1900 Bugatti participated in the Targa Rignano in a quadricycle.