JF Ptak Science Books Post 2623
A Possible-reality from the visionary Robert Fludd
[Source: University of Utah, http://content.lib.utah.edu/cdm/compoundobject/collection/naturae/id/1587/show/1265/rec/1]
Robert Fludd’s (1574-1637), title page for his Utriusque Cosmi . . . Historia (1617) features this complicated astrological wheel with a Vitruvian-man-like image at the vortex of the imaged pulls and pushes of the cosmos. In addition to everything else, real and imagined, Rosicrucianism and astrology and puffy-birds, Fludd, who was an English physician, delved deeply into the real stuff of the world in this book in addition to all of the other make-believe--optics, the musical intervals, perspective drawing, hydraulic engineering, construction of lifting machines, military engineering and many other interesting, physical science topics. But this drawing, right there on the title page, reveals Fludd’s real interests and shows what governs what he does. Everything else, the math and and the physics, services this need. Of course the image is beautiful, which is why it is here, but it is also a deeply personal, exploitative, cover-all for the things that Fludd wanted to find.
But there is a lot of other interesting, and potentially-applicable, real-world stuff and proposals in the book as we can see in the exotic and wonder-full image of the high-Renaissance "tank" that leads this short post. I'm not so sure that this thing would actually move--I assume that it has wheels or something in the front part to help it move along, otherwise that weapon would go nowhere. Even if it was assumed to be mobile, I wonder about whether four horses is enough to move along something that size plus six canon and at least three men. Even with 5'/6' wheels, it seems not so likely that this would roll across a battlefield. All that said, this did exist in the realm of possibility, and Fludd had much else. Since I've been doing research on the first battlefield appearances of tanks, this one particular image caught my attention.
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