Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
so brilliant, the eyescan hardly bear to look atthem, while at mid-daywe observe them Avithout ditficulty. Highly-polished metallic surfaces, however, reflect more light as theangle of incidence diminishes, the greatest amount being reflectedwhen the incident rays are perpendicular to the surface.…
Physics · Astronomy
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