William George Horner

Definition

William George Horner was a British mathematician and inventor known primarily for creating the 'zoetrope' in 1834, an early optical device that produced the illusion of motion. His invention contributed significantly to the understanding of persistence of vision, which is the phenomenon where an afterimage is perceived after the original image has disappeared, making it possible to create animated sequences from still images.

5 Must Know Facts For Your Next Test

1. Horner's zoetrope was initially called the 'daedalum' and was one of the first devices to effectively illustrate the concept of persistence of vision.
2. The zoetrope allowed viewers to see moving images without the need for complex machinery, making it accessible for entertainment and education.
3. Horner's invention laid groundwork for future developments in animation and motion pictures, influencing other inventors and artists.
4. The principle of persistence of vision is fundamental to how modern film and animation work today, relying on the same psychological effect Horner harnessed.
5. Despite its popularity, the zoetrope became less common with the rise of more advanced technologies like film projectors in the late 19th century.

Review Questions

• How did William George Horner's invention influence early animation techniques and devices?
  • William George Horner's invention of the zoetrope marked a significant advancement in early animation techniques by demonstrating how sequential images could create an illusion of motion. The zoetrope utilized the principle of persistence of vision, which allowed viewers to perceive continuous movement from individual frames. This innovation inspired further development in optical devices and set the stage for later forms of animation and film technology.
• Discuss the relationship between Horner's zoetrope and other pre-cinema optical devices, such as the phenakistoscope.
  • Horner's zoetrope and Joseph Plateau's phenakistoscope are both foundational pre-cinema optical devices that exploit the same principles of persistence of vision. While the phenakistoscope used a spinning disc with slits to create moving images viewed from a stationary position, the zoetrope employed a cylindrical design allowing multiple viewers to see motion simultaneously as it spun. Both devices played crucial roles in advancing visual entertainment and laid important groundwork for later cinematic technologies.
• Evaluate how Horner's contributions to optical devices shaped our understanding of visual perception and its implications for modern animation.
  • William George Horner's contributions through the invention of the zoetrope greatly enhanced our understanding of visual perception, particularly through the lens of persistence of vision. By showing how sequential images could trick the brain into perceiving motion, Horner's work paved the way for modern animation techniques. This foundational knowledge has implications for contemporary film-making and animation, as it continues to inform how visual narratives are constructed and how audiences engage with animated content today.

Related terms

Zoetrope: A cylindrical device that creates the illusion of motion by displaying a sequence of images through slits in the sides as it spins.

Persistence of Vision: The optical illusion that occurs when multiple discrete images blend into a single image in the human mind, allowing for the perception of motion.

Phenakistoscope: An early animation device that used a spinning disc with sequential images, viewed through slits to create the illusion of movement, invented by Joseph Plateau.