Must we learn mathematics as in the 1800s ? If you aspire to be a scientist or an engineer you may be frustrated by the very formal structure of mathematics. In particular, you may find proofs difficult to follow. If you only need to apply mathematics, however, you may take the attitude that proofs[...]

Wonders of the Human Body This book provides facts and ideas about essential aspects of life, and suggestions about how to stay healthy. We are hardly aware of how the body works, since it man¬ages very well without our conscious control. The di¬gestion of food and the intricate extraction of nu[...]