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Perfect Ratios

While working on drawings for pi is by design, I noticed a propeller like shape.
Perhaps indicating optimum air/water flow possibilities for aircraft, ships, etc.

This design has many interesting features, such as:
The small blue diamond sitting on top of the red line contains the location for π 3.14159...,
All horizontal and vertical measurements end with the repeating remainder 142857
The proportions/ratios of this design are as perfect as 22/7 (3.142857...)
The two circle diameters 64.28...% / 35.71...% = 1.8
The number seven recurs frequently, for example, the height of the 100mm propeller (or %),
divided by one-half the thickness of the central disk (14.285714...mm) is 7.
The disk diameter 53.428... / 17 = 3.142857..., and 17 is the 7th number in the list of primes.

3.5 times

The circle diameters decrease toward the center by 3.5 x. There is also a Sun and Planets link.

right triangle

Right triangles.

propeller design

propeller top

propeller left

propeller front

optimum air or water flow

The central disk correctly depicted as football shaped in these next images.

one way rotation

propeller 3d

Perfect ratios and patterns

Perfect ratios and patterns are a universal phenomenon,
and the torpedo shaped Bluefin Tuna is one such example.

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