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This is the title page to the 1811 edition of the Descriptive Geometry of Gaspard Monge (1746-1818). This book deals with methods for representing three-dimensional objects in two dimensions. It was written to accompany Monge's courses at the Ecole Polytechnique in Paris.
What is the sum of the reciprocals of the triangular numbers?
Wanting to know the breadth of a river, I measured a base of 500 yards in a straight line close by one side of it.
Essays on how number has been critical to the work of scientists through the ages.
In baking a hemispherical loaf of bread of 10" radius, the crust was everywhere of an equal thickness, and the solidity of the crust was equal to half the solid content of the whole loaf. What were the dimensions of the interior soft part?
If you are h feet tall and walk all the way around the Earth, keeping to the same circumference, how much farther has your head gone than your feet when you complete the journey?
The classic work by Dirk Struik is still worth reading, especially for its attention to the social context of the development of mathematical ideas.
Netscape Users
A comprehensive history of trigonometry from ancient times to the Renaissance.
A four-sided town measures 1100 feet on one side and 1000 feet on the other side, on one edge 600 and the other edge 600.