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Visible ill this shot from .-piK i iirc the Rocky Mountains ami ihc (.ulf of California.
X-rays, gamma rays and cosmic rays. Specially-engineered photographic emulsions take "pictures" by virtually every wave length below and including infrared. An example of this kind of photographic wizardry is the portrait gallery of the sun now in existence, including pictures taken by ultraviolet, Lyman-alpha radiation, and even by x-ray. Each of these varied portraits reveals new facts about the way the nuclear furnace in the sky works.
When John Glenn rocketed into outer space February 20, NASA scientists knew in advance that he would not have to worry about lethal radiation. The reason: he had been preceded in space by film "badges" similar to those protecting atomic research workers. A satellite last year brought back the first photographic dosimetry records of radiation in the Van Allen belt surrounding the earth at altitudes higher than Glenn's orbit.
Among Glenn's chores, as he whirled around the earth, were some photographic ones. Included in his equipment was a small spectrograph carrying spectroscopic film, ultraviolet sensitized. Glenn himself was continuously photographed on Ekta-chrome film by a pilot observer camera which produced a record showing man's reactions in the strange environment of orbital flight. I One of photography's most esoteric tasks in spaceage research is tracing the tracks or "footprints" of high-energy nuclear particles— a project of intense interest to nuclear physicists. In this area photographic pellicles are expected to make a significant contribution.
Hundreds of these "pellicles"— sheets of unsupported highly-sensitive emulsion— are stacked in layers to make cubes as much as a foot and a half thick. Theiipurpose: to record tracks of high-energy nuclear particles from man-made atom smashing machines such as the cyclotron as well as nuclear particles from outer space.
Photographic nuclear track plates can record tracks of low energy particles which stop within the emulsion. However the high energy types travel so fast that the relatively thin emulsion cannot even slow them down. They can be tracked however, by the thicker emulsion of the pellicles. The result is a new science of high energy particle astronomy, painting a picture of the universe through the shortest wave lengths of the electromagnetic spectrum.
As man continues his epic journey into the unknown, there is at least one sure bet: no matter how far he vaults into space, the wide-ranging eyes of photographic cameras and film will surround him like a cluster of stars, pointing the way to the farthest reaches of the universe.
John Glenn, as photographed during the course of his orbital flight.
Educational Scree.'v and Audiovisual Guide— July. 1962
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