Triumphs and wonders of the 19th century, a volume of original, historic and descriptive writings showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress (1901)
Boyd, James Penny, 1836-1910 · Philadelphia, A. J. Holman & co · leaf 107
A triangular glass prism heldclose to the crevice turns this beam into a band of rainbow hues. If thehole can be changed into a small slit, say one fourth of an inch high and onefiftieth of an inch wide, and if the light can further be made to pass in suc-cession through several prisms, instead of… … THE SPECTROSCOPE. solar spectrum. The image formed by the light of any luminous body,after it has passed through a prism, is said to be the spectrum of that body. VIII. THE SPECTROSCOPE AND ITS TRIUMPHS. The spectroscope consists essentially of three tubes joined in the form ofthe letter Y, one of…
Progress · Inventions
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![An illustration from Bicknell's village builder. Elevations and plans for cottages, villas, suburban residences, farm houses [etc.] also exterior and interior details for public and private buildings, with approved forms of contracts and specifications. Containing fifty-five plates drawn to scale (1872)](https://img.insideoutlibrary.com/img/200/ia-bicknellsvillage00bick-195-183.webp)
