A system of natural philosophy, designed for the use of schools and academies (1845)
Moffat, J[ohn] M. [from old catalog] · Philadelphia, E. C. Biddle · leaf 394
tant for all refract-ing bodies ? Into what error was he led in respect to the dispersive power of re-fracting media ? What general statement is true in regard to the refractive and the dis-persive powers of different substances ? Construct and explain the diagram illustrating the difference… … 392 optics. this want of correspondence is termed the irrationality of disper-sion, or irrationality of the coloured spaces in the spectrum. 181. On this inequality of dispersive power among transparentbodies depends the construction of those optical instruments calledachromatic,* or aplanatic,f…
Physics
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