The name John in its Greek form á¼°ÏÎ¬Î½Î½Î·Ï (IÅannÄs) features prominently in the New Testament, being borne by John the Baptist, John the Apostle, and several others; the Gospel of John, three epistles, and Revelation are each attributed to a John . As a result, the name became immensely popular in Christian societies.n Welsh, the name John is rendered as Ieuan (pronounced as Yay-an or Yey-an), and as Ifan (pronounced IV-an), Ianto (pronounced as Yan-to) or Ioan (pronounced as Yo-an) or Sion (siÃ´n pronounced As-sh). On ifan eventually became rendered Into english As. evan
This is ironic, because the spot-type disc brake is an American invention. In 1898, Elmer Ambrose Sperry of Cleveland designed an electric car having front-wheel disc brakes. He made a large disc integral with the hub on each wheel.
The basic braking system we have today was pretty much in place by 1921, including a refinement some regard as contemporary -- power assist. Power assist, technically, dates back to 1903 when a car called the Tincher used air brakes. But the first car to be equipped with a vacuum-operated power booster similar to those we have today was the 1928 Pierce-Arrow. It used vacuum from the inlet manifold to reduce the physical effort needed to apply brakes.