Story of helium

The story is one of the most significant and exciting in the whole history of science. It started with the “impractical” observation of a line in the solar spectrum with no then-known earthly counterpart. With guest, Captain Albert R. Behnke of the United States Navy, Dr. Hildebrand traces the unfolding story through discoveries of vast scientific value to applications in aeronautics, deep diving, and high altitude flying. In summary, Dr. Hildebrand discusses the revelation of the source of the sun’s energy and the possibility of obtaining inexhaustible supplies of energy to serve the needs to men.