What is Stroboscopic disc?
[[File:Phenakistoscope 3g07690u.jpg|thumb|A disc]] [[File:Phenakistoscope 3g07690b.gif|thumb|Looking through a slit a mirror, the image will appear as shown]] The '''stroboscopic disc''' was the first tool that showed a [[animation|moving picture]]. It is also known as '''phénakisticope''' or '''phenakistoscope'''. [[Simon von Stampfer]], and [[Joseph Antoine Ferdinand Plateau]] each invented it separately at the start of the 1830s. In 1833, first models were used to amuse people in [[London]]. The disc uses the [[optical illusion]] called beta movement or [[stroboscopic movement]] today. There is a rotating disc with images, and there are small slits between the images. A person watching will look at the reflection of the image in a mirror, from behind the disc. They will look through the slits, and see the images move, as shown in the picture. [[Franz von Uchatius]] combined the stroboscopic disc and the [[laterna magica]] to get a device that was able to project images, in the 1850s. {{physics-stub}} [[Category:Animation]] [[Category:Optics]]