Unit 8 Heroes from the past

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Hero from the past Johann Carl Friedrich Gauss Latin: (Carolus Fridericus Gauss) (30 April 1777 – 23 February 1855) Was a German mathematician and scientist who contributed significantly to many fields, including number theory, statistics, analysis, differential geometry, geodesy, geophysics, electrostatics, astronomy and optics. Sometimes known as the Princeps mathematicorum (Latin, "the Prince of Mathematicians" or "the foremost of mathematicians" and "greatest mathematician since antiquity", Gauss had a remarkable influence in many fields of mathematics and science and is ranked as one of history's most influential mathematicians. He referred to mathematics as "the queen of sciences." Gauss was a child prodigy. There are many anecdotes pertaining to his precocity while a toddler, and he made his first ground-breaking mathematical discoveries while still a teenager. He completed Disquisitiones Arithmeticae, his magnum opus, in 1798 at the age of 21, though it would not be published until 1801. This work was fundamental in consolidating number theory as a discipline and has shaped the field to the present day.

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Hero from the present Roger Federer (born 8 August 1981) is a Swiss professional tennis player. As of September 2009, he is ranked world number 1 by the Association of Tennis Professionals (ATP), having previously held the number one position for a record 237 consecutive weeks. Many sports analysts, tennis critics, and former and current players consider Federer to be the greatest tennis player of all time. Federer has won 15 Grand Slam singles titles, more than any other male player. He is one of six male players to have captured the career Grand Slam. Federer has appeared in an unprecedented 21 career Grand Slam finals, and as of September 2009, has reached the semi-finals or better of the last 22 Grand Slam tournaments, a streak that spans over five years. Federer also holds the record of reaching 10 consecutive Grand Slam finals and has appeared in 17 of the last 18. As a result of his successes in tennis, Federer was named the Laureus World Sportsman of the Year for four consecutive years (2005–2008).