#hardcover#science#physics#light#heat#electricity#scientists#discovery#biography This book is in very good condition with no wear to the spine or binding. Pages are clean and unmarked. Dust jacket has no tears or scuffing, though is slightly faded on the spine. Covers in very good shape, with some wear on the bottom near the spine. Owners label on inside front cover. Printed in 1984, 298 pp.