Evans, Henry Ridgely, b. 1861 · Chicago : The Open court Pub. Co.; [etc., etc.] · leaf 45
erandi of the experi-ment is sufficiently explained by reference to the descriptive Digitized by Microsoft® 6 THE OLD AND THE NEW MAGIC picture. It will suffice to add: One sees that when the door ofthe temple is opened, a system of cords, rods and pulleys causesa hemispherical cap, to the upper… … MECHANISM Which causkd the tkmple doors to open when a FIRE WAS LIGHTED ON THE ALTAR. Another remarkable device is described in the Pneumaticsof Heron, and consists of an apparatus which is entitled: Con-struction of a chapel i^hcrciii, nlicn tire is lighted upon the altar,the doors open, and when…
Magic tricks
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