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0. Crisis: The relevance of Instruments. Instruments vs tools

instrument : an object, device or mental construct for producing ideas, actions constructions and for materializing the spirit (As, 2007 Ak 1964)

for exampe a musical instrument, or a telescope

tool: a device or implement, esp. one held in the hand, used to carry out a particular function and to extend phisically a person capability, an extension of the body

 
CIrcle center D

Dimeter from left B to opposite A

G magic point half of radius

G = half of radius

EF = Side of a triangle (3 sides)

CA = Side of a Square (4 sides)

AD = side of exagon (6 sides)

EG = Side of sevengon (7 sides)

AI = Side of octagon (8 sides)

PENTAGON 5 Sides!

perpendicular to diameter point C

Center compass in G

Open compass C

Find in the opposte site of center D, point H!

HC is equal of side of the pentagon

and

HA/DA golden section ratio!!

if DA = than HA is equal to 1,618 famous Φ!

applying other rules it is possible also to have

9, 10, 11 and 12 sides

DH = Side of ninegon (9 sides)

ch-ad/2=dh

LC = side od decagon (10 sides)

from AD/2 make line GC remaining LC

GH/2= side of elevangon (11 sides)

EC= side of dodecagon (12 sides)

AI = Side of Octagon (8 sides)

Leofantin Triangle

If You are really workalcholoic and you want to read more .... here is the paper "Give me a cord and ...I will build"

in pdf >> or in html format >>