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Convergence articles

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A biography of Gauss designed for high school students.

Review of Bertram's text on the history of Greek science.

A cliff with a tower on its edge is observed from a boat at sea; find the height of the cliff and the tower.
Now a pile of rice is against a wall, it has a base perimeter of 60 feet and a height of 12 feet.
The 2006 Joint Mathematics Meetings in San Antonio, TX, January 12-15, 2006, have many sessions in the history of mathematics and their use in teaching.
Two pages from a 1650 manuscript of the Lilavati of Bhaskara II (1114-1185). The second photo is an illustration of the Pythagorean Theorem.
Two circles of radii 25 feet intersect so that the distance between their centers is 30 feet. What is the length of the side of the largest square inscribable within their intersecting arcs?
A mouse is at the top of a poplar tree 60 braccia high, and a cat is on the ground at its foot. The mouse decends 1/2 a braccia a day and at night it turns back 1/6 of a braccia.
Page 8, Images from the Paul Halmos Photograph Collection: Armand Borel, Karol Borsuk, Raoul Bott, William Browder, H. Arlen Brown, and R. Creighton Buck
There is a round fish pond of certain dimensions, and into the pond is dropped a marble column. How high will the water rise?