**Leo Moser** — (April 111921 mdash;February 91970) was an Austrian Canadian mathematician, best known for his polygon notation.A native of Vienna, Leo Moser immigrated with his parents to Canada at the age of three. He received his Bachelor of Science degree… … Wikipedia

**Leo Motzkin** — (1867 1933) was a Russian Zionist leader. A leader of the World Zionist Congress and numerous Jewish and Zionist organizations, Motzkin was a key organizer of the Jewish delegation to the 1919 Paris Peace Conference and one of the first Jewish… … Wikipedia

**The Benedictine Order** — The Benedictine Order † Catholic Encyclopedia ► The Benedictine Order The Benedictine Order comprises monks living under the Rule of St. Benedict, and commonly known as black monks . The order will be considered in this article under… … Catholic encyclopedia

**Nicomedes (mathematician)** — Conchoids of line with common center. Nicomedes (Νικομήδης; ca. 280 BC – ca. 210 BC) was an ancient Greek mathematician. Contents 1 Life and work … Wikipedia

**Squaring the circle** — Squaring the circle: the areas of this square and this circle are equal. In 1882, it was proven that this figure cannot be constructed in a finite number of steps with an idealized compass and straightedge … Wikipedia

**Diocles (mathematician)** — Diocles (Διοκλῆς in Ancient Greek, ca. 240 BC – ca. 180 BC) was a Greek mathematician and geometer. Life and work Although little is known about the life of Diocles, it is known that he was a contemporary of Apollonius and that he flourished… … Wikipedia

**The Church in China** — The Church in China † Catholic Encyclopedia ► The Church in China Ancient Christians The introduction of Christianity into China has been ascribed not only to the Apostle of India, St. Thomas, but also to St. Bartholomew. In the… … Catholic encyclopedia

**Leo Königsberger** — (October 15, 1837–December 15, 1921) was a German mathematician, and historian of science. He is best known for his three volume biography of Hermann von Helmholtz, which remains the standard reference on the subject.Königsberger was born in… … Wikipedia

**Aristarchus On the Sizes and Distances** — Aristarchus s 3rd century BC calculations on the relative sizes of, from left, the Sun, Earth and Moon, from a 10th century CE Greek copy On the Sizes and Distances (of the Sun and Moon) (Περὶ μεγεθῶν καὶ ἀποστημάτων [ἡλίου καὶ σελήνης]) is… … Wikipedia

**Doubling the cube** — (also known as the Delian problem) is one of the three most famous geometric problems unsolvable by compass and straightedge construction. It was known to the Egyptians, Greeks, and Indians.[1] To double the cube means to be given a cube of some… … Wikipedia