SIZE: 5 ½ x 8 ½ (approximately) PAGES: 178 pages.

Answers to questions in various scientific disciplines, e.g., "What are pulsars?", "Is the universe running down?", "What is the difference between a brain and a computer?", and "Why did the dinosaurs die off?".

Collects forty-three articles in which the prolific science writer examines, speculates on, and evaluates various aspects, achievements, and impacts of science and technology in the past and in the future

Explanations of mathematical techniques and principles are combined with the history of mathematics. Includes simple arithmetic, square root, logarithms, and even imaginary numbers.