 | William Jillard Hort - 1822 - 346 pages
...towards the other. Whatever way the object moves, the image will move the contrary. All the while, a bystander will see nothing of the image, because none of the reflected rays which form it enter his eyes. By the skilful management of these mirrors extraordinary optical illusions... | |
 | Encyclopedias and dictionaries - 1823 - 886 pages
...whatever way the object moves, the image will move the coiit trary. All the while a bystander «ill see nothing of the image, because none of the- reflected rays that form it enter his eyes. SECT. III. Cañera Obscura. The camera obscura having already been fully described under the word DIOPTRICS,... | |
 | Luke Herbert - Industrial arts - 1824 - 394 pages
...centre of concavity, and he Will imagine he may shake hands with his image ; yet a by-stander n ill see nothing of the image because none of the reflected rays that form it enter his eyes. Let a fire be made in a large room, and a smooth mahogany table be placed at a good distance near the... | |
 | Charles Frederick Partington - Science - 1828 - 468 pages
...if he move his hand towards either side, the hand of the image will move towards the other ; so that whatever way the object moves, the image will move...or to impose upon the ignorant and superstitious. A few of these experiments may be noticed. — If a fire be made in a large room, and a smooth mahogany... | |
 | Thomas Curtis - Aeronautics - 1829 - 824 pages
...if he move his hand towards either side, the hand of the image will move towards the other ; so that whatever way the object moves the image will move the contrary way. A bystander will see nothing of tiie image, because none of the reflected rays that form it enter his eyes. 505. From this remarkable... | |
 | Alexander Jamieson - Industrial arts - 1829 - 654 pages
...if he move his hand to»ard either side, the hand of the image will move towards the other : so that whatever way the object moves, the image will move the contrary way. A bystander will sec nothing of the image, because none of the rellected rays that form it enter bis eyes. The images... | |
 | Francis Lieber, Edward Wigglesworth - Encyclopedias and dictionaries - 1832 - 626 pages
...he move his hand towards either side, the hand of the image will move towards the other ; so that, whatever way the object moves, the image will move the contrary way. A bystander will sec nothing of the ima^e, because none of the reflected rays that form it enter his eyes. The images... | |
 | Encyclopaedia Americana - 1832 - 620 pages
...towards the other ; so that, whatever way the object moves, the image will move the contrary vray. A bystander will see nothing of the image, because none of the reflected rays tt* form it enter his eyes. The images formed by convex specula are in position* similar to those of... | |
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... hand towards either side, the hand of the image will move towards the other ; so that, whatever way the object moves, the image will move the contrary way. A bystander will see nothing of the image, because none of the reflected rays that form it... 
