Liberal Arts Blog — Basic Units, Physical Constants, Circles and Triangles

Liberal Arts Blog — Monday is the Joy of Math, Statistics, and Numbers Day

Today’s Topic — Basic Units, Physical Constants, Circles and Triangles

Math is the language of nature. Today, a few notes on the most magical of natural numbers: the basic units, physical constants, mathematical constants. Experts — please chime in. Correct, elaborate, elucidate.

BASIC UNITS: 3 or 7

1. The big three: distance, mass, and time. The meter, the second, the gram. Notice the prominence of the big three in the graphic above.

2. The big seven: take the three basic units and add four: ampere (electric current), kelvin (temperature), mol (amount of a substance), and candela (luminosity).

3. So simple, so complicated.

PHYSICAL CONSTANTS: three big ones

1. The speed of light: 186,000 miles per second

2. The gravitational constant: 6.674×10−11 m3⋅kg−1⋅s−2

3. The Planck constant: 6.62607015×10−34 J⋅s in SI units. (relates a photon’s energy to its frequency).

NB: do you believe any of this? why? do you understand it? Yeh, right. If so, please explain in English.

CIRCLES AND TRIANGLES ARE EVERYWHERE AND EVERYWHERE THE SAME

1. The ratio of the circumference to the diameter of a circle. Also known as pi.

2. The sum of all angles of a triangle is always 180 degrees.

3. Does this not blow your mind?

SI base unit

Physical constant

Mathematical constant

https://en.wikipedia.org/wiki/Pi

Sum of angles of a triangle