Swiss polymath who made significant contributions to various fields of science. He is considered the greatest mathematician that ever lived.
In 2005, Opera CEO, Jon Stephenson von Tetzchner, announced that he would swim across the Atlantic from Norway to the US if the version 8 of web browser received a million downloads in 4 days. The number was reached in just 2 days and Tetzchner went ahead with the challenge, though in vain. [more...]