 | James Ferguson - 1764 - 322 pages
...the radius, and the quotient is the diftance required. If the objed be in the center of xhe mirrour's concavity, the image and object will be coincident, and equal in bulk. If a man places himfelf directly before a large concave mirrour, but farther from it than its center of concavity,... | |
 | James Ferguson - Astronomy - 1776 - 546 pages
...• lefs by the radius, and the quotient is the diftance required. If It the object be in the center of the mirror's concavity, the image and object will be coincident, and equal in bulk. If a man places himfelf directly before a large concave mirror, but farther from it than iu center of concavity,... | |
 | William Nicholson - Natural history - 1809 - 684 pages
...radius by double the distance made less by the radius, and the quotient is the distance required. If the object be in the centre of the mirror's concavity,...image and object will be coincident, and equal in balk. It' a man place himself directly before a large concave mirror, but farther from it than its... | |
 | William Nicholson - 1809 - 716 pages
...radius by double the distance made less by die radius, and the quotient is the distance required. If the object be in the centre of the mirror's concavity, the image and object will be coincident, ant) equal in bulk. If a man pUcc himoclf directly before л large concave mirror, but further from... | |
 | Encyclopaedia Britannica - 1810 - 814 pages
...radius by. double the diflance mad.e lefs by the radius, and the quotient is the diftance required. If the object be in the centre of the mirror's concavity, the image and objeft will be coincident, and equal in bulk. If a man place himfelf directly before a large concave... | |
 | Sir Richard Phillips - Celestial mechanics - 1811 - 196 pages
...nearer than the Centre of concavity, the image will be more remote and larger than the object. 236. If the object be in the centre of the mirror's concavity, the image and object will be equal, and coincide. Experiment. If I stand before a large concave mirror, beyond its centre of concavity,... | |
 | John Lee Comstock - Physics - 1813 - 448 pages
...focus, the image moves in a contrary direction from the object, because the rays then cross each other. If a man place himself directly before a large concave mirror, but farther from it than the centre of concavity, he will see an inverted image of himself in the air,... | |
 | James Ferguson - Astronomy - 1814 - 420 pages
...section. .The reader may see the demonstration of this in Wood's Optics, pp. 43 and 117— E. ED. If the object be in the centre of the mirror's concavity,...in bulk. If a man place himself directly before a r large concave mirror, but farther from it than, its centre of concavity, he will see an inverted... | |
 | William Shepherd, Jeremiah Joyce, Lant Carpenter - Education - 1815 - 598 pages
...clearly demonstrated in the works to which we shall have occasion to refer. If the object be exactly in the centre of the mirror's concavity, the image and object will be coincident and equal in bulk. So that if a person place himself directly before a large concave mirror, but farther from it than... | |
 | William Nicholson - Natural history - 1821 - 402 pages
...radius by double the distance made less by the radius, and the quotient is the distance required. If the object be in the centre of the mirror's concavity,...further from it than its centre of concavity, he will see an inverted image of himself in the air, between him and the mirror.of a less size than himself.... | |
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If a man place himself directly before a large concave mirror, but further from it than its centre of concavity, he will see an inverted image of himself in the air, between him and the mirror, of a less size than himself. And if he hold out his hand... 
