In June 1792, amidst the chaos of the French Revolution, two intrepid astronomers set out in opposite directions on an extraordinary journey. Starting in Paris,

Discusses the origins of standard units of measurement and how they have changed from ancient times to modern day, and describes systems of measurement, includi

Now with new art by Katie Kath (illustrator of Unusual Chickens for the Exceptional Poultry Farmer), this easy-to-understand introduction teaches children how t

More Than a Million Copies Have Been Sold of this Powerful Book for Men, Now Revised for a New Generation For forty years, The Measure of a Man has taught hundr

A comprehensive reference and history book on what is measured and why. Measurement is one of humankind's oldest and most vital activities. By measuring height,