The copybooks of two young men reveal very different purposes in learning geometry.

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The copybooks of two young men reveal very different purposes in learning geometry.

A certain man says that he can weigh any amount from 1 to 40 pounds using only 4 weights. What size must they be?

A delightful survey of the history of trigonometry, along with discussions of its uses, both ancient and modern.

An analysis of James Gregory's proof of the Pappus-Guldin theorem, along with the original documents both in Latin and English.

Two cog-wheels, one having 26 cogs, and the other 20 cogs, run together. In how many revolutions of the larger wheel will the smaller gain in 12 revolutions?

After a terrible battle it is found that 70% of the soldiers have lost an eye.

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?

How does geometry begin? This work explores the origins of geometry in the work of artisans.

Netscape Users

In a rectangle, having given the diagonal and perimeter, find the sides