Scientific amusements . THE TALKING HEAD. I03 was placed a table on three legs ; on this table was ahuman head, placed in cloth on a dish. The head moved ,its eyes and spoke ; it evidently belonged to a man whosebody was completely hidden. The spectators thoughtthey saw an empty space beneath the table, but thebody of the individual who was really seated there wasconcealed by two glasses placed at an inclination of 45°to the walls on the right and left. The whole wasarranged in such a manner that the reflection of thewalls coincided with the visible part of the wall at theback of the room. The
Scientific amusements . THE TALKING HEAD. I03 was placed a table on three legs ; on this table was ahuman head, placed in cloth on a dish. The head moved ,its eyes and spoke ; it evidently belonged to a man whosebody was completely hidden. The spectators thoughtthey saw an empty space beneath the table, but thebody of the individual who was really seated there wasconcealed by two glasses placed at an inclination of 45°to the walls on the right and left. The whole wasarranged in such a manner that the reflection of thewalls coincided with the visible part of the wall at theback of the room. The three walls were painted in onecolour, and a subdued light increased the illusion, theeffect of which was remarkable. The spectres designed by Robin also attracted con-siderable public attention within recent times. Theywere Images formed by the medium of transparent panes often produce the phenomenon of the evening, when it is dark out of doors, it is easyto prove that the reflection of object
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Keywords: ., bookcentury1800, bookdecade189, booksubjectscientificrecreations
