View Full Version : Tetrad

12-30-2008, 01:10 PM
This is a Phoenix-thread (http://forum.alchemyforums.com/showthread.php?t=7) from the old site (http://alchemy-forums.forumotion.com/forum.htm).

1+2+3+4 = 10. To go further requires that we add the monad or one.

The tetragrammaton - IHVH,the name of god.

Four elements - Fire, Air, Water, Earth.

Four Consecrated Animals, Lion, Eagle, Man and Calf.

Four Archangels, Michael, Gabriel, Uriel, Raphael.

The Earth was created on the fourth day in Genesis.

Four sides of a square and four angles.

Four qualities - cold, hot, dry, damp.

Four seasons of the year - Spring, Summer, Autumn, Winter.

Four phases of the moon.

Four elements of Metaphysics; Being, essence, virtue, action.

Four cardinal points on the compass.

Four limbs to the cross.

In the ancient Egyptian, the internal organs of the chest and abdomen were removed and preserved in 4 jars, often called the Canopic Jars.

Four suits to a deck of playing cards - clubs, diamons, spades, hearts.

Four suits to the minor arcana of the Tarot - wands, swords, pentacles, chalice.

The Tarot also has four court cards - King, Queen, Knight, Page.

There are 22 major arcana in the Tarot. 2+2 = 4

Four masters of Ireland compiled a history of Ireland.

Four Rivers of Eden - Euphrates, Gihon, Hiddekel and Pison.

Four Rivers of the Infernal Regions according to the Greeks, Phlegethon, Cocytus, Styx and Acheron.

The fourth dimension is Time.

In Mayan culture four giants support the celestial roof. And the world has been destroy four times. We are now in the fifth creation.

In Scandinavian cultures there are four rivers of milk flowing in Asgard.

Four is the number of the prototypical complete family - a father, a mother, a son, and a daughter.

Man has four limbs.

Man has two eyes, but a man with glasses is sometimes called four eyes.

A hand has four fingers. Each finger is made of four bones - scaphoid, lunate, triquetral and pisiform.

Four divisions of mathematics - arithmetic, astronomy, geometry and music.

12-30-2008, 01:11 PM
In the West 13 is unlucky, but in China it is 4!

四 — considered unlucky since the pronunciation of 4 (sì ) sounds like the word for death or suffering (sǐ ). - source (http://en.wikipedia.org/wiki/Numerology#Chinese_number_definitions)

02-07-2014, 01:52 AM
I count my thumb as a finger lol, but I still think that 5 fingers with 4 bones is interesting.

A tetrahedron has 4 vertices (corners) and is the smallest object that can be constructed in 3D space assuming that the vertices themselves have no dimension (0D).

Primes: 1,2,3,5 (4 is first non-prime... well some would argue that 1 is not prime, but it follows the rules of dividing by one and itself!)

2x2 = 4 (in essence this is a duality of two... and also the first time this happens... 1x1=1, 2x2=4, 3x3=9... 4 is after three but still before 9)

2^2 = 4 = 2*2 (1x1 = 1, 1^1=1.... 3x3=9, 3^3=27) .... 2^2 = 2 to the power of 2, just in case you didn't know this notation

Divisors of 4 (numbers that you can divide four by and get a whole number): 2, 1, 4 (i.e. 2x2, 1x4, 4x1... again... the first number that is non-prime... 1x1, 1x2, 1x3, 1x5).. it only has one other divisor (compared to the next non-prime 6: 1,2,3,6 (2x3, 1x6))

I think of the tetrahedron branching off in two directions with two each as a really powerful example of the 2x2, 2^2 and the beginning of the third dimension... like a flat square/plane popping and twisting into a whole, 3D object.... or like folding a square-ish shape in half on the diagonal and connecting the free corners with a line...
Maybe you can imagine something like this:

It's interesting that no matter what orientation you put the points of a triangle in, it is still flat... Try it out!