National Geographic : 1955 Jun
@ National Geographic Society 4 Fiery Rings at an Atom Show Swing Around a Glowing Nucleus Boston's Museum of Science enchants youngsters with an invitation to roam at will, push buttons, touch anything. This model shows the composition of an atom. Red bands represent electrons revolving about protons and neutrons (blue and greenish lights). The demonstration comes to a climax with a blinding flash and deafening crash, simulating a nuclear explosion. 775 Kodachromes by National Geographic Photographer B. Anthony Stewart + Bobbing Beach Ball Proves That a Wave Does Not Move Much Water Instructor Peter S. Eagleson, in the Hydrodynamics Laboratory of the Massachusetts Institute of Tech nology, illustrates that a wave is a disturbance in water rather than a displacement. The ball rises and falls but does not follow the wave. Three feet deep and 100 feet long, the glass channel facilitates a study of beach erosion.