The Technical World, Volume 1American school of correspondence at Armour Institute of Technology, 1904 |
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Page 1
... light in that it produced an effect upon a sensitized photographic plate , but was wholly unlike light , first , in that it was invisible , and second , in that it was able to pass easily through many substances opaque to ordinary light ...
... light in that it produced an effect upon a sensitized photographic plate , but was wholly unlike light , first , in that it was invisible , and second , in that it was able to pass easily through many substances opaque to ordinary light ...
Page 2
... light - commonly known as a " fluores- PROF . R. A. MILLIKAN . than to any immediate influence of the electrical discharge ; and , if so , that the rays ought to be emitted not simply by a vacuum tube , but also by uranium when exposed ...
... light - commonly known as a " fluores- PROF . R. A. MILLIKAN . than to any immediate influence of the electrical discharge ; and , if so , that the rays ought to be emitted not simply by a vacuum tube , but also by uranium when exposed ...
Page 3
... light will appear on the glass , just as though rays of some sort originated at C and passed through the two openings O in much the same way as light would do . There are a great many substances which , if placed anywhere in the line ...
... light will appear on the glass , just as though rays of some sort originated at C and passed through the two openings O in much the same way as light would do . There are a great many substances which , if placed anywhere in the line ...
Page 4
... light waves . In 1898 this dispute was ended by two experiments , the first performed by Perrin , a Frenchman , and the other by J. J. Thomson , professor of physics in Cambridge University , England . Per- rin's experiment consisted in ...
... light waves . In 1898 this dispute was ended by two experiments , the first performed by Perrin , a Frenchman , and the other by J. J. Thomson , professor of physics in Cambridge University , England . Per- rin's experiment consisted in ...
Page 6
... light resembling that of a glow - worm ; and when placed near certain substances , as willemite or zinc sulphide , it causes them to light up with a glow more or less brilliant according to the amount of the radium at hand . In the ...
... light resembling that of a glow - worm ; and when placed near certain substances , as willemite or zinc sulphide , it causes them to light up with a glow more or less brilliant according to the amount of the radium at hand . In the ...
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