Please Explain

Reviewed in the United States on April 20, 2002 Isaac Asimov used to have a column in the Science Digest magazine where the readers will place before him different questions like "How long will the Sun last?" or "What is the antigravity?" and his task was to make his explanations in very lay terms, so that any one with a very basic science background would be able to understand them. In the book he compiled what he believes are the most relevant 100 questions he answered, or that anyone who is curious about science will ask himself at one point or another. Eventhough it was written a long time ago (1973) the validity of its explanations still stand at least to the general public.