1/7
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
One of the earliest to study vision. Proposed that light comes from visible objects and travels to the eye.
Pythagoras 480 BC
Suggested that the eyes emits light. Vision occurs when light from the eye interacts with objects
Empedocles 450 BC
Supported Emission Theory (Active Vision). Believed rays come from the eyes and “touch” objects allowing us to see
Plato 428-328 BC
Opposed emission theory by proposing the Intromission Theory. Light comes from objects and enters the eye. Introduced the role of medium in vision
Aristotle 384-322 BC
Studied geometrical optics. Light travels in straight lines . Described the Law of Reflection
Euclid 300 BC
Conducted early scientific measurements of light
Ptolemy 160 AD
Proposed that vision involved pneuma (life force). Pneuma travels from brain → optic nerve → eye.
Galen 200 AD
Studied burning mirrors and lenses. Explained how curved mirrors and lenses focus light
Ala Ibn Sahl 984 CE