The Pressure of LightSociety for Promoting Christian Knowledge, 1910 - 103 страници |
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John Henry Poynting. CE CE S RE UC - NRLF QC 467 P7 B 4 539 554 OF SCIENCE SERIES THE PRESSURE OF LIGHT ING R.S. 777 U To Pump SCK J. H. POYNTING , Sc.D. , F.R.S. UNIVERSITY OF CALIFORNIA SANTA CRUZ. Front Cover.
John Henry Poynting. CE CE S RE UC - NRLF QC 467 P7 B 4 539 554 OF SCIENCE SERIES THE PRESSURE OF LIGHT ING R.S. 777 U To Pump SCK J. H. POYNTING , Sc.D. , F.R.S. UNIVERSITY OF CALIFORNIA SANTA CRUZ. Front Cover.
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John Henry Poynting. UNIVERSITY OF CALIFORNIA SANTA CRUZ THE PRESSURE OF LIGHT THE ROMANCE OF SCIENCE THE PRESSURE. LIBRARY.
John Henry Poynting. UNIVERSITY OF CALIFORNIA SANTA CRUZ THE PRESSURE OF LIGHT THE ROMANCE OF SCIENCE THE PRESSURE. LIBRARY.
Страница 3
... UNIVERSITY OF BIRMINGHAM 173141 PUBLISHED UNDER THE DIRECTION OF THE GENERAL LITERATURE COMMITTEE LONDON OBSERVATU ! LICK OBS M OCT 15 1935 CALIFORNIA SOCIETY FOR PROMOTING CHRISTIAN KNOWLEDGE NORTHUMBERLAND AVENUE , W.C .; 43 , QUEEN ...
... UNIVERSITY OF BIRMINGHAM 173141 PUBLISHED UNDER THE DIRECTION OF THE GENERAL LITERATURE COMMITTEE LONDON OBSERVATU ! LICK OBS M OCT 15 1935 CALIFORNIA SOCIETY FOR PROMOTING CHRISTIAN KNOWLEDGE NORTHUMBERLAND AVENUE , W.C .; 43 , QUEEN ...
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... University of Cambridge . Eleventh thousand- revised . Illustrated . Post 8vo , cloth boards , 2s . 6d . Nature says : " The book is replete with information , and by the genera scientific reader will be found exceedingly interesting ...
... University of Cambridge . Eleventh thousand- revised . Illustrated . Post 8vo , cloth boards , 2s . 6d . Nature says : " The book is replete with information , and by the genera scientific reader will be found exceedingly interesting ...
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... University of Birmingham . Fifth edition . With several Illustrations . Post 8vo , cloth boards , 35 . The Lancet says : " These lectures afford a large amount of information on the subject of bacteriology , and the results which have ...
... University of Birmingham . Fifth edition . With several Illustrations . Post 8vo , cloth boards , 35 . The Lancet says : " These lectures afford a large amount of information on the subject of bacteriology , and the results which have ...
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angle beam of light black disc black surface blackened calculated circular cloth boards comets convection corpuscles corpuscular theory cubic centimetre deflexion density diameter direction Doppler dynes earth earth's distance effect electric electrified plate emitted energy per cubic ergs exerted experiment Fcap fluorite forward front face give glass gravitation constant gravitative pull greater heat hemisphere incident beam Lebedew light force light-pressure limp cloth magnetic measured medium millionth motion Nernst lamp normal NORTHUMBERLAND AVENUE Note observed torque orbit particles perpendicular Post 8vo PRESSURE OF LIGHT Professor push quartz fibre radiation radiometer action radius refracting repelled repulsion rise in temperature round the sun says shown in fig side sideways solar Solar Constant spinning square centimetre sunlight suppose suspended system tail telescope tion tubes of force UNIVERSITY OF BIRMINGHAM University of Cambridge vacuum velocity of light wave-length waves αρ
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Страница 34 - A flat body exposed to sunlight would experience this pressure on its illuminated side only, and would therefore be repelled from the side on which the light falls. It is probable that a much greater energy of radiation might be obtained by means of the concentrated rays of the electric lamp. Such rays falling on a thin metallic disk, delicately suspended in a vacuum, might perhaps produce an observable mechanical effect.
Страница 82 - The Sun cannot tolerate dust. With the pressure of his light he drives the finest particles altogether away from his system. With his heat he warms the larger particles. They give out this heat again and with it some of that energy which enables them to withstand his attraction. Slowly he draws them to himself and at last they unite with him and end their separate existence.