Professor Thormod Henriksen and his team of scientists at the University of Oslo Physics Department in Norway have given the public free access to a tremendous book: "Radiation and Health." We can not express enough gratitude. This is rare and unusual in academia in other countries, where textbooks routinely cost hundreds of dollars per semester. Dr. Henriksen's book is full of interesting and easy to understand information about radiation, radioactivity, artificial radioactive isotopes and nuclear medicine.
