Amateur mechanics ... a book for old and young who like to make things .. (1907)
Popular mechanics magazine, Chicago. [from old catalog] · Chicago, Popular mechanics · leaf 82
ough the gla;: \ eryplainly. The lights in front of theglass (behind the scenes) are nowraised, very gradually as those behindthe glass are turned down, until it isdark there. The perfectly black sur-face behind the glass now acts like thesilver backing for a mirror, and the ob-ject upon which the… … Construction of the Peppers Ghost Illusion The explanation is very simple, saysthe Model Engineer and Electrician.Between the audience and the coffinis a sheet of transparent glass, inclinedat an angle so as to reflect objects lo-cated behind the scenes, but so clear asto be invisible to the…
Handicraft · Amusements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-709-322.webp)
