Robert Cruikshank

Symmetric Difference of Sets is Associative

How Beta is Conjugate to Binomial

The Beta Function: Solving the Defining Integral for integer a,b

CDFs for Exponential Rayleigh Weibull and Pareto Distributions

Low Pass, High Pass, or Bandpass Filter?

Counting Radial and Angular Nodes in Atomic Orbitals

From Complex Roots to Real Solutions

Electric power: Definitions (A Two Minute Video)

What is E[E[X|Y]] ?

Adding Vectors: TLDW Version

Adding Vectors: Every. Single. Step.

A Tricky F = ma Problem from Kleppner and Kolenkow 1st ed

Holder Inequality Lemma: A 2 minute proof

Power and Intensity (an example with sound energy)

How Voting Works

Why Study Cyclohexane?

Harmonics vs Overtones

Why does the Fourier Trick Work? Using trig not integration by parts

Moment and Shear All Along a Cantilever

From Physics 1 to Engineering Statics: Cantilever Example

Product to Sum Trigonometric Formulas

1000 Subscribers!

Nodes and Antinodes in an Open Pipe

100 cm^2 is NOT 1m^2! Visual Examples in Metric

Hydrogen and Energy (clearing up confusion)

Force Diagrams Quiz

How to Clean a Quadra-Fire 1200-I Pellet Insert (Stove that fits inside a fireplace)

Deciphering the Definition of Complete Statistic

Force Diagram for a Diving Board

The Definition of Sufficient Statistic Looks Weird (a 2 minute remake)