Optics Without MathematicsSociety for promoting Christian knowledge, 1883 - 124 páginas |
Dentro del libro
Resultados 1-5 de 14
Página 5
... medium in which they exist . This medium is called the ether or luminiferous ether ; but its existence being only assumed for the sake of the theory , it need not be further noticed . yet it would take 50 of the waves of light OPTICS ...
... medium in which they exist . This medium is called the ether or luminiferous ether ; but its existence being only assumed for the sake of the theory , it need not be further noticed . yet it would take 50 of the waves of light OPTICS ...
Página 12
... Medium ( me- dia if more than one ) : this is anything that light 1 Not literally always , but the exceptions do not come under our notice at present . passes through ; anything that carries it forward on its 12 OPTICS WITHOUT MATHEMATICS .
... Medium ( me- dia if more than one ) : this is anything that light 1 Not literally always , but the exceptions do not come under our notice at present . passes through ; anything that carries it forward on its 12 OPTICS WITHOUT MATHEMATICS .
Página 35
... medium to another , it is always refracted or bent , if the media are of different density . By density we mean the amount of matter in a certain space ; so that one medium is more or less dense than another according to the quantity of ...
... medium to another , it is always refracted or bent , if the media are of different density . By density we mean the amount of matter in a certain space ; so that one medium is more or less dense than another according to the quantity of ...
Página 36
... medium ( rare expressing the reverse of dense ) it is refracted towards P : if from denser to rarer , from P ; or in other words , the larger angle the ray makes with P is always on the rarer side . If then a ray should pass out of air ...
... medium ( rare expressing the reverse of dense ) it is refracted towards P : if from denser to rarer , from P ; or in other words , the larger angle the ray makes with P is always on the rarer side . If then a ray should pass out of air ...
Página 39
... medium to another of different density , provided it does not fall perpendicularly , in which case there is no re- fraction , it is so bent into a fresh course that the sine of the angle of incidence bears a constant or unvarying ratio ...
... medium to another of different density , provided it does not fall perpendicularly , in which case there is no re- fraction , it is so bent into a fresh course that the sine of the angle of incidence bears a constant or unvarying ratio ...
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.