The New Encyclopædia BritannicaEncyclopædia Britannica, 1992 |
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Page 434
... light , and gamma rays . The term also refers to the emission and transmission of such radiant en- ergy . A brief treatment of electromagnetic ra- diation follows . For full treatment , MACROPAEDIA : Electromagnetic Radiation ; Light ...
... light , and gamma rays . The term also refers to the emission and transmission of such radiant en- ergy . A brief treatment of electromagnetic ra- diation follows . For full treatment , MACROPAEDIA : Electromagnetic Radiation ; Light ...
Page 635
... LIGHT Meter , photographic auxiliary device that measures the intensity of light and indicates proper ex- posure ( i.e. , the combination of aperture and shutter speed ) for film of a specific sensitivity . Modern instruments are of two ...
... LIGHT Meter , photographic auxiliary device that measures the intensity of light and indicates proper ex- posure ( i.e. , the combination of aperture and shutter speed ) for film of a specific sensitivity . Modern instruments are of two ...
Page 681
... light beam by a magnetic field . Michael Faraday , an English scientist , first observed the effect in 1845 when studying the influ- ence of a magnetic field on light waves that had been plane polarized by passing through a block of ...
... light beam by a magnetic field . Michael Faraday , an English scientist , first observed the effect in 1845 when studying the influ- ence of a magnetic field on light waves that had been plane polarized by passing through a block of ...
Contents
14 written for Catherine the Great Observations | 14 |
Consult the INDEX first | 581 |
Didius Julianus marble bust in | 703 |
Copyright | |
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