Trinities

 

One Is the Loneliest Number

One is the loneliest number that you'll ever do
Two can be as bad as one
It's the loneliest number since the number one

How about THREE?

Three seems to be a common number.

• There are three states of matter: solid, liquid and gas. (Yes there is often a fourth state, plasma, that is defined, but let’s consider plasma to be a special case of matter being completely converted into its component energy.) 

• There are three elemental signs of the zodiac and alchemy: earth, air, and water. (Where the fire signs are proposed to be treated like plasma). 

• Christians worship the Holy Trinity: Father, Son, and Holy Spirit. 

• Many mythologies include three principal gods, e.g., the Greek gods Zeus, Poseidon, and Hades, who respectively governed the sky, sea, and underworld. 

• An English sentence has three essential parts: a subject, an object, and a verb. 

• In physics there are three major classes of subatomic particles; electrons, protons, and neutrons, where protons and neutrons are, in turn, each composed of three quarks.   
  
  
• There are three families of quantum particles: each with their own neutrino; the electron, muon and tau neutrinos. 

• There are three fundamental forces in the Unified Theory of Physics: electromagnetism, the strong nuclear force, and the weak nuclear force.  The Unified Theory is not able to include gravity, but this may be because gravity is an apparent force defined by a Euclidean frame reference and not a fundamental force.

• In engineering, the strongest polygon is a triangle.

• In wood working, the minimum number of legs for a stable stool or table is three.

• Newton proposed three Laws of Motion.

• There are three Laws of Thermodynamics.

• There are three forms of geometry: depending on whether the curvature of a plane is positive, zero, or negative.  The curvature is defined by the sum of the three angles in a triangle, where a sum is greater than 180 degrees (positive curvature, spherical); equal to 180 degrees (zero curvature, flat or Euclidean); or less than 180 degrees (negative curvature, hyperbolic).

• In political science it is common to speak of two parties, but the government is controlled by one of those two parties depending on how well they form a coalition with, are supported by, independents, an unofficial implied third "party".

Three certainly does not sound like a lonely number.