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Plano-convex   Listen
adjective
Plano-convex  adj.  Plane or flat on one side, and convex on the other; as, a plano-convex lens. See Convex, and Lens.






Collaborative International Dictionary of English 0.48








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"Plano-convex" Quotes from Famous Books



... buildings as well). One of the most useful criteria of age is: Bricks. The form of the brick is a very good guide to date. The Babylonians used both kiln-baked and crude bricks. The oldest type, whether baked or crude, is plano-convex in form, and uninscribed. The mortar is bitumen. Later on rectangular bricks, often square, made in moulds, were introduced. These usually bore the name of the royal builder. Later on bricks became generally oblong and much like our own. In the sixth century the square shape was ...
— How to Observe in Archaeology • Various

... October 10, 1868, I partially darkened a small room in the Royal Institution, into which the sun shone, permitting the light to enter through an open portion of the window-shutter. In the track of the beam was placed a large plano-convex lens, which formed a fine convergent cone in the dust of the room behind it. The experimental tube was filled in the laboratory, covered with a black cloth, and carried into the partially darkened room. On thrusting one end of the tube into the cone of rays behind ...
— Fragments of science, V. 1-2 • John Tyndall



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