Optics Without MathematicsSociety for promoting Christian knowledge, 1883 - 124 páginas |
Dentro del libro
Resultados 1-5 de 11
Página 27
... come in our way , and we can show the principle on paper . We have set our lighted taper in front of the mirror . The wick is in the principal axis , and somewhere in that axis its conjugate focus will fall , OPTICS WITHOUT MATHEMATICS .
... come in our way , and we can show the principle on paper . We have set our lighted taper in front of the mirror . The wick is in the principal axis , and somewhere in that axis its conjugate focus will fall , OPTICS WITHOUT MATHEMATICS .
Página 40
... it , and really wish to under- stand the principle , I must ask you to go over it again and again till you do . You will be sure to master it at last . But now something more comes out of this . You 40 OPTICS WITHOUT MATHEMATICS .
... it , and really wish to under- stand the principle , I must ask you to go over it again and again till you do . You will be sure to master it at last . But now something more comes out of this . You 40 OPTICS WITHOUT MATHEMATICS .
Página 60
... very pleasing ; and the inversion of moving figures very amusing . This is the principle of the ap- paratus called the Camera Obscura , which is sometimes made on a large scale for public ex- hibition бо OPTICS WITHOUT MATHEMATICS .
... very pleasing ; and the inversion of moving figures very amusing . This is the principle of the ap- paratus called the Camera Obscura , which is sometimes made on a large scale for public ex- hibition бо OPTICS WITHOUT MATHEMATICS .
Página 63
... principle and the practice of the Simple Micro- scope , a convex lens , having in PF the object you wish to magnify , the power of which will be found by dividing the smallest distance at which you see the object perfectly , by the ...
... principle and the practice of the Simple Micro- scope , a convex lens , having in PF the object you wish to magnify , the power of which will be found by dividing the smallest distance at which you see the object perfectly , by the ...
Página 66
... principles , in which the light of the lamp A , LEW B reflected as much as may be by the concave mirror B , is made by ... principle is represented here . Our last problem led to a very interesting result . The next will fairly equal or ...
... principles , in which the light of the lamp A , LEW B reflected as much as may be by the concave mirror B , is made by ... principle is represented here . Our last problem led to a very interesting result . The next will fairly equal or ...
Otras ediciones - Ver todas
Términos y frases comunes
angles of incidence aperture axis beautiful called candle circle cloth boards colour concave lens concave mirror conjugate foci converging convex lens course crossing crystal crystalline lens curious curves dark direction dispersion distance Double Refraction edge equal angles equi-convex eye-lens Fcap feet focal image focal length form an image fraction front happens hole inches larger lenses look looking-glass magnifying power microscope minute moon Newtonian reflector NORTHUMBERLAND AVENUE object object-glass opposite optical parallel rays perfect perfectly picture plane mirror polarised position prism produce PROMOTING CHRISTIAN KNOWLEDGE properties of light proportion radiant radius rainbow ray passes reflected rays reflecting telescopes refraction retina reverse right angles seen shorter focus side sideways sine Sir EDMUND BECKETT spectrum speculum sphere spherical spherical aberration straight line suppose surface telescope thing tion turned undulations violet waves wonderful
Pasajes populares
Página 125 - ANCIENT HISTORY FROM THE MONUMENTS. This Series of Books is chiefly intended to illustrate the Sacred Scriptures by the results of recent Monumental Researches in the East. Fcap. 8vo, cloth boards, 2s. each. Assyria, -from the Earliest Times to the Fall of Nineveh. By the late GEORGE SMITH, Esq., of the British 'Museum.
Página 123 - The Stars in their Seasons. An Easy Guide to a Knowledge of the Star Groups, in 12 Maps.
Página 88 - Look upon the rainbow, and praise him that made it; very beautiful it is in the brightness thereof. It compasseth the heaven about with a glorious circle, and the hands of the Most High have bended it.
Página 123 - EVENINGS AT THE MICROSCOPE ; or, Researches among the Minuter Organs and Forms of Animal Life. By P. H. GOSSE, Esq., FRS A new edition, revised and annotated. Post 8vo Cloth boards 4 o FAN'S SILKEN STRING. By ANNETTE LYSTER, author of " Northwind and Sunshine,
Página 124 - CARE OF HEALTH. By the late EA PARKES, MD, FRS FOOD. By ALBERT J. BERNAYS, Professor of Chemistry at St. Thomas's Hospital. WATER, AIR, AND DISINFECTANTS. By W. NOEL HARTLEY, Esq., King's College. HEALTH AND OCCUPATION. By BW RICHARDSON, Esq., FRS, MD THE HABITATION IN RELATION TO HEALTH.