http://ed.ted.com/lessons/how-the-heart-actually-pumps-blood-edmond-hui
This shows how you can demonstrate how the heart actually pumps. If Leonardo da Vinci had known this perhaps he wouldn’t have given up working on the heart!
http://ed.ted.com/lessons/how-the-heart-actually-pumps-blood-edmond-hui
This shows how you can demonstrate how the heart actually pumps. If Leonardo da Vinci had known this perhaps he wouldn’t have given up working on the heart!