"A colour is a physical object as soon as we consider its dependence, for instance, upon its luminous source, upon other colours, upon temperatures, upon spaces, and so forth"
- Ernst Mach
About the Author
This quote is written / told by Ernst Mach between February 18, 1838 and February 19, 1916. He/she was a famous Physicist from Austria.
The author also have 20 other quotes.
