Franz Muller Lyer
- Category : Humanities+Social-Sciences-Sociologist
- Type : MGE
- Profile : 4/6 - Opportunistic / Role Model
- Definition : Triple Split
- Incarnation Cross : RAX The Sphinx 1
German psychologist and sociologist. The Müller-Lyer illusion is named after him.
The Müller-Lyer illusion is an optical illusion consisting of a stylized arrow. When viewers are asked to place a mark on the figure at the midpoint, they invariably place it more towards the "tail" end.
He died 29 October 1916.