David Marr Quote

In order to understand bird flight, we have to understand aerodynamics; only then does the structure of feathers and the different shapes of bird's wings make sense.

p. 27 - Vision, 1982

In order to understand bird flight, we have to understand aerodynamics; only then does the structure of feathers and the different shapes of bird's...

In order to understand bird flight, we have to understand aerodynamics; only then does the structure of feathers and the different shapes of bird's...

In order to understand bird flight, we have to understand aerodynamics; only then does the structure of feathers and the different shapes of bird's...

In order to understand bird flight, we have to understand aerodynamics; only then does the structure of feathers and the different shapes of bird's...