United States or Turkey ? Vote for the TOP Country of the Week !
But to see somebody just like a regular gentleman I could never have fancied that!" There was a good deal in what she said. I had to give up my suggestions, and I tried to give Nora some idea of what are called "optical delusions," though my own comprehension of the theory was of the vaguest. She listened, but I don't think my words had much weight.
A special optical laboratory was erected at the Pasadena headquarters of the Mount Wilson Observatory, and here the long task of grinding, figuring, and testing the mirror was successfully carried out by the observatory opticians. This operation, which is one of great delicacy, required years for its completion.
Immense hour and declination circles could be read by optical systems from the operators' seats circles fully forty feet in diameter, graduated with incredible delicacy and accuracy into decimal fractions of seconds of arc, and each driven by variable-speed motors through gear-trains and connections having no backlash whatever.
But the wide expansion of this field and of the whole manifoldness of emotional possibilities in the moving pictures is not sufficiently characterized as long as we think only of the optical representation in the actual outer world.
He was so obstinate, I thought it better to tell him what I really had seen. Of course with him it was held to be another effect of the same cause: it was all optical illusion nervous malady, and so on. Not one bit did I believe him; but I dared not contradict: doctors are so self-opinionated, so immovable in their dry, materialist views.
Great as is the perfection to which our optical instruments have been brought, they have revealed nothing on the planet save the so-called canals, to indicate the presence of sentient rational beings.
"Not being a transcendentalist or a visionary, I am forced to the conclusion that what you thought you saw, was, really nothing but an optical illusion!" "You think that?" "Indeed I do!" "I assure you, that the image seemed as real, as substantial, and as solid to me then as you do now." "No doubt of it! Optical illusions always seem very real perfectly real." "It was an optical illusion then!
This research may be taken to illustrate the use of the reaction-time method in investigating such complex processes as attention, temperament, etc. The department which includes the various time measurements in psychology is now called Mental Chronometry, the older term, Psychometry, being less used on account of its ambiguity. III. An Optical Illusion.
It was I who resolved the singular problem of rotation in the cells and hairs of plants into ciliary attraction, in spite of the assertions of Mr. Wenham and others, that my explanation was the result of an optical illusion. But notwithstanding these discoveries, laboriously and painfully made as they were, I felt horribly dissatisfied.
He seemed, in fact, bubbling over with excited good-humour. "Isabel, my dear," he exclaimed, "it is wonderful! I have succeeded! I have changed the principles of a lifetime, made the most brilliant optical experiment which any man of science has ever ventured to essay, with the result well, you shall see. I have wired to the Admiralty, wired for more work-people.
Word Of The Day