Leonardo's Anatomy Sketches: 3d?
He was the first to diagnose heart disease. It wasn't just his knowledge that was ahead of his time but the sketches themselves. They haven't been rivaled in detail until modern technology and MRI machines and 3d models. Leonardo wanted to display the human body as if you could literally look inside it,
"If you cut an onion down the center you will be able to see and count all the coatings or rinds that form concentric circles round the center of this onion. Similarly if you cut a man's head down the center you will cut through the hair first, then the skin, and the muscular flesh and the pericardium, then the cranium and within the dura matter and the pia mater and the brain, then the pia dura matter again and the rete mirabile and the bone which is the foundation of these."
The problem with that is as you dissect a single body and want to draw one aspect of it, in the process another section would have to be destroyed to get at it. This is why he had to use more than one body.
Leonardo used his futuristic artistic techniques to display different parts of the body in more than one dimension: "if you wish thoroughly to know the parts of man, anatomically, you - or your eye - require to see it from different aspects..." Meaning that he drew it from different perspectives which created an almost "3d model" This wasn't something people even conceived of until hundreds of years later. What I noticed in his art expands on his inventiveness to new levels that haven't yet been appreciated. In the animation I made above it shows what I mean. There is actually a way to process some of his art that will both animate and turn it 3d.. This will be explained further in my book "Discovering Da Vinci's Daughter" (out very soon!) and there is more on my site itsjustlife.com
"This depicting of mine of the human body will be as clear to you as if you had the natural man before you: and the reason is that if you wish thoroughly to know the parts of man, anatomically, you - or your eye - require to see it from different aspects, considering it from below and from above and from it's sides, turning it about and seeking t he origin of each member; and in this way the natural anatomy is sufficient for your comprehension.
But you must understand that this amount of knowledge will not continue to satisfy you; seeing the very great confusion that must result from the combination of tissues, with veins arteries, nerves, sinews, muscles, bones, and blood which, of itself tinges every part the same color. And the veins, which discharge this blood, are not discerned by reason of their smallness. Moreover integrity of the tissues, in the process of the investigating the parts within them, is inevitably destroyed, and their transparent substance being tinged with blood does not allow you to recognize the parts covered by them, from the similarity of their blood stained hue; and you cannot know everything of the one without confusing and destroying the other." - Leonardo da Vinci
“Leonardo da Vinci: Anatomist”: Queen's Gallery at Buckingham Palace Shows from May 4 to October 7 and features 87 anatomical drawings.