Volume 4

Rational recreations, in which the principles of numbers and natural philosophy are clearly and copiously elucidated by a series of easy, entertaining, interesting experiments. Among which are all those commonly performed with the cards / By W. Hooper.

  • Hooper, William, M.D.
Date:
1787
Catalogue details

Licence: Public Domain Mark

Credit: Rational recreations, in which the principles of numbers and natural philosophy are clearly and copiously elucidated by a series of easy, entertaining, interesting experiments. Among which are all those commonly performed with the cards / By W. Hooper. Source: Wellcome Collection.

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    painted on them. In the tube O is placed another that is moveable, and that contains two lenfes £ and Q, by which the objects on the glades are thrown on the wall : K is a lamp, and E, F the funnel by which the fmoke comes out, and its cover that keeps in the light. P L A T E IV. p. 50. Fig. 1, and 2. Are two plates of glafs, to pads through the groove in the magic lantern at the fame time, and by which the appearance of a temped; is to be exhibited. Fig. 3. is a box that contains a chafing difh, on the fmoke of which, that comes out at the top of the box AB, the figures of a magic lantern are thrown. Fig. 4. A machine for reprefenting a phan- tom : within it is placed a magic lantern, the images of which being reflebled by the mirror M, pafs out at an opening in the top of the box, and are thrown on the fmoke -of a chafing difh placed upon it, where they are vifible. Fig. 5. A large magic lantern for exhibiting a magical theatre. In the tube LI are feveral grooves in different directions, by which different glades are paffed at the fame time. PLATE V. p. 66. Fig. 1. Reprefentation of an objecd reflected by a plain mirror. AC the objecd, GI the mirror, I) F the image.