A bird makes the same use of wings and tail in the air as a swimmer does of his arms and legs in the water.
— Leonardo da Vinci, The Notebooks of Leonardo Da Vinci (1938)
Topics: physics
A bird makes the same use of wings and tail in the air as a swimmer does of his arms and legs in the water.
— Leonardo da Vinci, The Notebooks of Leonardo Da Vinci (1938)
Topics: physics