The Popular Science Monthly, Volume 98McClure, Phillips and Company, 1921 |
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Page 19
... photograph , and covers every point on its surface . In this way it literally " feels out " the photograph . But if the instrument kept its knowl- edge to itself , so to speak , it would be of no use to us . There must be means of ...
... photograph , and covers every point on its surface . In this way it literally " feels out " the photograph . But if the instrument kept its knowl- edge to itself , so to speak , it would be of no use to us . There must be means of ...
Page 20
... photograph , the resistance of the micro- phone fluctuates , and the cur- rent in the telephone circuit varies in the same way as when you are conversing over the wire . Only , the language it speaks no man ever heard of . It now needs ...
... photograph , the resistance of the micro- phone fluctuates , and the cur- rent in the telephone circuit varies in the same way as when you are conversing over the wire . Only , the language it speaks no man ever heard of . It now needs ...
Page 61
... photograph of the left side of his head ; compare this with the uninteresting right side pho- tograph . Yet when you look at the actual photograph of the man's head , Moving - Pictures Made in Disk Form A disk - shaped film is used in ...
... photograph of the left side of his head ; compare this with the uninteresting right side pho- tograph . Yet when you look at the actual photograph of the man's head , Moving - Pictures Made in Disk Form A disk - shaped film is used in ...
Contents
Manufacture Your Wrenches from Steel Tubing | 98 |
Copying Books by the MotionPicture | 104 |
Cutting Large Keyways by Hand | 110 |
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