Again, ant makes incredibly stupid and ignorant assertions here, flinging mad bullying insults because I have questioned his hostility to the science of evolution. ant's questions are solely aimed to defend his traditional supernatural religious commitments, and have a creationist flavour to them. Ant’s assertions of fraud and error on my part are entirely false, and his aggressive errors about astronomy and philosophy are easy to refute.ant wrote:By the way, Leonardo is not on record as having any philosophical commitments. Quite the contrary, he wrote nearly nothing about his personal reflections about any ideas of the time,
Particularly anything related to astronomy. - NOTHING Can you provide evidence for that claim, Robert? You are becoming a fraudulent scientist. Its going to be fun slapping the doodoo out of this crazy fantasy of yours. every bully needs this type of beatdown.
I earlier mentioned Leonardo's comment that "The earth is not in the centre of the Sun's orbit nor at the centre of the universe.” (858) He also says "The sun does not move". (886) This was written in his Notebooks several decades before Copernicus and illustrates his support for heliocentric astronomy. I have mentioned this in this thread which it appears ant has ignored.
As I have detailed in this thread, Leonardo’s Notebooks provide extensive support for his philosophical commitment to Hermetic method, the idea of “as above so below”. This is the principle later used by Sir Isaac Newton as the basis of modern astronomy and physics. Leonardo wrote “Hermes the Philosopher”.
In response to a question earlier from Geo at http://www.booktalk.org/post84371.html#p84371 I wrote that “Gnostic tradition saw the divine in nature. Suppression of such ideas as heresy meant they could not be spoken openly in Leonardo’s day. Yet, if Leonardo was sympathetic to such thinking of Hermes the philosopher, what better way to express it than in a painting that seems to validate Christian dogma while actually pointing to a higher truth?”
At http://www.booktalk.org/post91743.html#p91743 I wrote that Leonardo “anticipated a fractal philosophy through his observation of reflection between microcosm and macrocosm. For example, he found that the anatomy of veins and arteries follows the same geometry as the roots and branches of a tree. There is a deep sense of causal logic here, using observation to articulate a natural necessity… Jessica Teisch and Tracy Barr [write]
I can see that ant simply and blithely dismisses this entire scholarly understanding of Leonardo’s modern position and work because it clashes with ant's pre-modern supernatural faith. But the point of this thread is entirely about scientific analysis, a broad topic to which ant continues to display a deep and irrational opposition.“Leonardo saw patterns in nature and revered all forms of life. His insatiable curiosity led him to constantly observe, experiment, theorise and invent. His anatomical studies show an advanced understanding of the systems in the body. His ideas about the stars and heavens prefigured later great thinkers like Copernicus and Galileo. All Leonardo's endeavours were connected by his never-ending quest to discover and understand the underlying principle, or design, of the universe. He observed an integrated universal design in unrelated objects and natural phenomena. He saw the world as interconnected, with things at the micro level mirroring designs at the macro level, for example human arms and legs functioning sort of like tree branches do. Human perception and experience, rather than religious teaching, mysticism, superstition, alchemy, or even Aristotelian logic, provided the real core of understanding of the universe. This quest for truth freed him from medieval scientific convention. For most of his life, Leonardo developed theories about the micro and macrocosmos. He compared the circulation of the Earth, for example, to the circulation of the human body: both living systems seemed to operate according to similar rules. His desire for perfection - to render each detail, from a petal to a finger, strikingly realistic - hindered his productivity. Painting The Last Supper, he'd stare at the wall for a few hours, perhaps fix one tiny thing or make one small brush stroke, and then return home to work on other pressing projects. In some ways, he adhered to tradition, but in other areas he was a true explorer, a pioneer whose fertile imagination grasped and prophecied unheard of possibilities. Most of Leonardo's dreams had to wait a few centuries to be realized. The Leonardo's of the world - those visionary audacious thinkers - are the ones who break with an antiquated past and move the world forward one step at a time.”