“If the blood corpuscles of the human body (25 trillion in number) were joined together to form a chain, they would encircle the world four times over. Their surface would cover an area of 4900 square yards.”
1943, © Fritz Kahn
“If the blood corpuscles of the human body (25 trillion in number) were joined together to form a chain, they would encircle the world four times over. Their surface would cover an area of 4900 square yards.”
1943, © Fritz Kahn