The New Encyclopaedia Britannica, Volume 18Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 98
... light is changed in direction ( refracted ) and this change in angle varies with the wavelength , blue light ( of shorter wavelength ) being refracted somewhat more than red light . A lens may be thought of , very approxi- mately , as ...
... light is changed in direction ( refracted ) and this change in angle varies with the wavelength , blue light ( of shorter wavelength ) being refracted somewhat more than red light . A lens may be thought of , very approxi- mately , as ...
Page 106
... light passing through the aperture varies in direct proportion to the light and shade ( i.e. , brightness values ) of that line of the image as it is traversed by the aperture . When the outermost aperture has passed over the image ...
... light passing through the aperture varies in direct proportion to the light and shade ( i.e. , brightness values ) of that line of the image as it is traversed by the aperture . When the outermost aperture has passed over the image ...
Page 113
... light increases . The optical image is focussed on the end of the tube and passes through the signal plate to the photoconductive layer , where the light induces a pattern of varying con- ductivity that matches the distribution of ...
... light increases . The optical image is focussed on the end of the tube and passes through the signal plate to the photoconductive layer , where the light induces a pattern of varying con- ductivity that matches the distribution of ...
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19th century actors adiabatic process applied audience broadcasting cable called camera carpels carrier centimetres centre channels chemical chrominance circuit classical colour commedia dell'arte communications court device drama drugs early effect eigenvalues electrical electrons energy engine entropy Eocene equation Europe fabrics fibres Figure film frequency Germany Greek heat important increased industry loom machine material mechanical megahertz ment metal method metres millimetres Miocene modern modulation Oligocene operation Paleocene pattern percent performance picture play pressure production radio real tennis receiver religious Roman scanning signal social space species stable equilibrium stage steam teachers techniques tektites telegraph telephone teleprinter telescope television temperature tennis tetraodontiforms textile textual criticism Thailand theatre theatrical thermodynamics thermoelectric thermoreceptors tion transmission transmitted tube ture United usually warp weave weft wire yarns