"Photographic plate" Quotes from Famous Books
 ... been mentioned in the preceding paragraphs all refer to observations taken with the eye, and are called visual magnitudes. The total intensity of a star is, however, essentially dependent on the instrument used in measuring the intensity. Besides the eye, the astronomers use a photographic plate, bolometer, a photo-electric cell, and other instruments. The difference in the results obtained with these instruments is due to the circumstance that different parts of the radiation are ...
— Lectures on Stellar Statistics • Carl Vilhelm Ludvig Charlier
... We say a certain portion because we know from scientific experience that the scale or gamut of sense-perception is limited, both as to its extent and as to its quality. Many insects, birds, and quadrupeds have keener perceptions in some respects than man. The photographic plate can register impressions which are beyond the perception of our highest sense of sight. The Roentgen rays have put us into relations with a new order of impression—records quite beyond the range of our normal vision. The animalcule and microbic life, ...
— How to Read the Crystal - or, Crystal and Seer • Sepharial
... then, is subject to an unending process of change, of suppression and addition, of dissociation and corrosion. This means that it is not a dead thing; it is not at all like a photographic plate with which one may reproduce copies indefinitely. Being dependent on the state of the brain, the image undergoes change like all living substance,—it is subject to gains and losses, especially losses. But each of the foregoing three classes has its use for the inventor. ...
— Essay on the Creative Imagination • Th. Ribot
... when a box was brought to the dingy room and Mr. Collins was asked to show what was inside it without the bother and inconvenience of disturbing lock and seals. The X-Ray machine sizzled above it, and a photographic plate below was developed to show a string of round discs that could easily ...
— Astounding Stories of Super-Science January 1931 • Various
... baffled. Try as he might, he could not get the image to show on the metal plate, nor could he get any results by using a regular photographic plate, ...
— Tom Swift and his Photo Telephone • Victor Appleton
... it over, upon the other; then shook the leaf gently to rid it of the loose powder. He held it out to Mr Cupples in silence. On one side of the paper appeared unmistakably, clearly printed in black, the same two finger-prints that he had already seen on the bowl and on the photographic plate. He took up the bowl and compared them. Trent turned the paper over, and on the other side was a bold black replica of the thumb-mark that was printed in grey on ...
— Trent's Last Case - The Woman in Black • E.C. (Edmund Clerihew) Bentley
... fluidic hands Dr. Ochorowicz calls "radiographs," because they can only be explained by supposing that the fluidic hand, which is placed upon the photographic plate, is in some way radio-active during the process. In no other way can the facts be explained. Even supposing, for the sake of argument, that the psychic could in some way have placed her own hands on the plates, they would not have produced the results obtained—as any one can prove ...
— The Problems of Psychical Research - Experiments and Theories in the Realm of the Supernormal • Hereward Carrington
... of it remains, and this would probably have escaped detection but for the remarkable actinic power of the radiant matter of which it consists. The richness of many of these faint nebulous masses in ultra-violet radiations, which are those that specifically affect the photographic plate, is the cause of the marvelous revelatory power of celestial photography. So the veritable unseen universe, as distinguished from the "unseen universe'' of metaphysical ...
— Curiosities of the Sky • Garrett Serviss |
