"When was writing invented?" "When does a child start recognizing faces?" "When do we dream?"...... the list of such questions is endless. Some of them are mundane experiences. Many are related to scientific phenomena. Still others are philosophical. Whatever their nature, scientists not only handle the with respect they deserve, but also attempt to satisfy our curiosity with perfect logical and scientifically acceptable answers.

Presented in a simple and easy to follow language, this collection of 50 essays discusses many fascinating questions. The facts and arguments are based on scientific investigations of the issues concerned. an interesting read for all.