[Clarke, William], 1800-1838 · Boston, Munroe and Francis · leaf 118
onstructed that the tube may turn round, and the mirror beelevated or depressed, that you may see successively, and at pleasure, allthe objects that you would perceive, if you were at the top of tlie wallagainst which the instrument is placed. THE KALEIDOSCOPE. To construct this instrument procure… … centre, at the circumference of the circle, d, in the annexed figure, which isa view of the right end of the instrument, from which the cap iias beenremoved. The circle is the edge of tlie tube, the lines, a c and 6 c, arethe edges of the two reflecting sm-faces, whicii are nearly of the samelength…
Sports · Amusements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-100-221.webp)
