(n.) An optical instrument or toy for showing the presistence of an impression upon the eyes after the luminous object is withdrawn.

校对:伍德罗

• The thaumatrope, which originated with Sir John Herschel, consists of a thin disc, bearing on opposite sides two associated objects, such as a bird and a cage, or a horse and a man. Edward W. Byrn. 十九世纪发明进展.

整理:史黛丝