## The (Shocking) History & Physics of Electric Transformers

History of electric transformers from Faraday through Lenz, Sturgeon, Callan, Ruhmkorff, Gaulard, Westinghouse and more

## Quaternions to Vector Analysis

by Kathy Joseph I just finished a video on a history of the quaternions and

## Quaternions Are Amazing and So Was William Rowan Hamilton (their creator)

A Biography and Description of Couplets, Quaternions and the life of Hamilton Before I get

## Why Nikola Tesla is So Famous (and Westinghouse is not)

In January of 1912, almost 20 years after the “war of the currents” was over

## Maxwell’s Equations Explained: Supplement to the History of Maxwell’s Equation

Introduction In this video I am going to explain the dot product, the cross product,

## History of Maxwell’s Equations: #1 Gauss’s Law

I would like to start with a little story. In the late 1950s the faculty

## ( ∈ vs. ε): Why Physicists Use 2 Forms of the Greek Letter Epsilon

When I learned Maxwell’s equations in college, I was taught to draw the permittivity with

## Faraday Cage and Ice Pail Experiment Explained

Before I get into the nitty grities of the physics of the Faraday cage and

## Faraday Cage History: A Deep Dive

On February 22, 2022, I got to climb into something called the “cave of doom”

## Charles Proteus Steinmetz: History and Science

Both during his life and after his death, Charles Proteus Steinmetz was often referred to

## Charles Proteus Steinmetz Biography

A couple of years ago, a supporter of this channel with the amusingly terrifying name

## How Tesla And Ferraris Invented The Two-Phase Motor

As I said in my video on the history of 3-phase electricity, both Nikola Tesla

## History Of 3-Phase Electricity And It’s Distribution

Almost all of our electrical systems use 3 phase AC electricity, but how does it

## The Origin of The Polyphase Current

As I said in my video on the history of 3-phase electricity, both Nikola Tesla

## James Joules: The Beer Brewer Who Changed The World

Most of us who know of James Joule know of him because we have heard

## Magnetic Fields, Electric Fields, and Elector Magnetic Waves: Physics And History

I was working on a video on the physics of the Faraday cage and it

## The Not So Honorable History of The Wheatstone Bridge

In my last video, on the history of Ohm’s law, I talked about part of

## Ohm’s Law: History and Biography of George Ohm

Everyone who studies basic electricity or physics learns Ohm’s law. But did you know that

## Why Doesn’t The US Use 220V Like Everyone Else In The World?

As I studied the history of electricity I wondered more and more, why do 1/3rd

## How The Light Bulb Was Invented And Who Invented It?

Imagine, you happened to fall back in time to November, 1705 and imagine you happened

## Who invented the light bulb?

Imagine, you happened to fall back in time to November, 1705 and imagine you happened

## How Norman Lockyer Discovered Helium, Chromosphere And Nature Magazine

How did Norman Lockyer go from being a poor civil servant with no scientific background,

## Joseph Fraunhofer: The Father of Modern Astronomy

When we think of astronomy, we think of this: a person studying the position of

## The Discovery of Alpha, Beta, and Gamma Rays

In this video I am going to talk about the three major types of nuclear

In July of 1898, Marie Sklodoska Curie and her husband Pierre Curie published the discovery

## Where did The Name “Battery” Originate

So, why is this thing called a battery and what does it have to do

## How Niels Bohr Mathematically Derived His Model

I just made a video about the personal history of Niels Bohr and how he

## Niel Bohr’s Nuclear Model: The Nuclear Model That Changed Physics

Niel Bohr said that before 1913 no one expected that the lines of color you

## The Atomic Meeting of 1941 in Copenhagen

The Atomic Meeting of 1941 in Copenhagen. In the fall of 1941, the scientist Carl

## Why Werner Heisenberg Worked for Hitler

In June of 1939, 37-year-old Werner Heisenberg went on a tour of America for a

## How Max Planck Fought The Nazis

Was Max Planck a fundamentally decent man who actually confronted Hitler and tried his best

## Max Planck’s Quantum Theory

In December of 1900, a conservative German scientist named Max Planck wrote a paper that

## Tricks for Solving Coulomb’s Law Problems

If you clicked on this link you know that Coulomb’s law often a bit of

## Charles Coulomb Biography And History Of His Equation

When I looked into the history of Charles Coulomb and his famous equation, I found

## Max Planck Biography with Depth & Humor

Max Planck was notoriously unphotogenic.  I mean just look at him, as a viewer said

## Boltzmann’s Entropy Equation: A History from Clausius to Plank

Boltzmann’s entropy formula is possibly the one of the most difficult equations in Physics. Not

## The Origin of the Second Law of Thermodynamics

I remember when I learned about the second law of thermodynamics: that the total entropy

## First Law of Thermodynamics: History of the Concept of Energy

The first law of thermodynamics is basically as follows: there are different types of energy,

## Why The Third Law of Thermodynamics made Einstein Famous

In late October of 1911, 31-year-old Albert Einstein went to an elite and influential conference

## Photoelectric Effect: History of Einstein’s Revolutionary View of Light

The photoelectric effect is taught in almost every physics class but we often forget to

## Alfred Nobel’s Obituary Calling him a “Merchant of Death” Never Happened & Never Inspired the Nobel Prize

If you read a biography of Alfred Nobel or of the Nobel Prize, including Wikipedia

## The Origin of The Photoelectric Effect: How Lenard Inspired and Then Terrorized Einstein

When we talk about the photoelectric effect, we usually only mention Albert Einstein.  After all,

## Max Planck Quantum Theory

Max Planck Quantum Theory “Why I Accidentally Created Quantum Mechanics” In December of 1900, a

## How Spectroscopy Changed the World

Did spectroscopy, the study of how light is emitted and absorbed by heated objects, really

## The Origin of Rutherford’s Nucleus Model

If you search online for how the nucleus was discovered you will probably find a

## The Wild Life of the Father of Nuclear Theory

Discover alpha and beta radiation, Radon, and the nucleus!  In 1909, a quirky and engaging

## JJ Thompson’s Discovery of Electron: Cathode Ray Tube Experiment Explained

JJ Thomson discovered the electron in 1897 and there are tons of videos about it.

## How Wilhelm Roentgen Started The X-ray Craze

X-ray was the first scientific discovery that wasn’t made famous through scientific publishing.  In fact,

## The Physics of How X-rays were Discovered

There are quite a few videos about how Roentgen discovered the x-ray, but most really

## How Wilhelm Roentgen Discovered X-rays

So, why is an x-ray called an x-ray?  The short answer is that when Wilhelm

## Wilhelm Roentgen Biography: How X-rays Were Discovered

On November 8thof 1895, a shy and diligent scientist named Wilhelm Roentgen saw a flicker

## How X-rays Were Discovered by Wilhelm Roentgen

On November 8th of 1895, a shy and diligent scientist named Wilhelm Roentgen saw a

## How the X-ray Machine was Discovered and Works

On November 8th of 1895, a man named Wilhelm Roentgen turned on a covered vacuum

## The Origin of the Cathode Ray Tube: Physics of the Geissler tube to the Crookes tube

Let’s start in early 1857 in a laboratory in Bonn, Germany.  That is where a

## Howard Armstrong and Frequency Modulation

Frequency modulation or FM radio transformed how we communicate.  It was, as Armstrong’s nemesis David

## Howard Armstrong, David Sarnoff And the Influential Superheterodyne Receiver

The superheterodyne method is where two signals are mixed to make a lower frequency signal

## How Howard Armstrong Invented Positive Feedback

Positive feedback in electronics, or when a small change is feed into a loop to

## Triode Vacuum Tube: How it Was Invented & How it Works

Before the invention of the transistor the most important electronic equipment was the vacuum triode.

## Lee de Forest: The Con Man Who Invented Radio

Lee de Forest routinely called himself the “Father of Radio” (it was even the title

## The Arc Transmitter and the Titanic

Between 1907 and 1920s most AM radio was sent out using something called an arc

In 1899, a temperamental Canadian scientist had a vision that speech and music could be

## Nikola Tesla Facts and Fiction

What have you heard about Tesla? That he invented Alternating Current (AC)? That he and

## Tesla Fact vs. Fiction: Why the Public Perception is Wrong

What have you heard about Tesla? That he invented Alternating Current (AC)? That he and

## The Birth of a Wireless Telegraph Empire

According to many people, Guglielmo Marconi invented the wireless telegraph.  In fact, his name was

## How Does a Tesla Coil Work

You might have seen the crazy cool demonstrations conducted with Tesla coils but how do

## How Does a Tesla Coil Work? A Historical Deep Dive

You might have seen the crazy cool demonstrations conducted with Tesla coils but how do

## How Heinrich Hertz Discovered Radio Waves to Validate Maxwell’s Equation

How was the first radio wave discovered and why?  Well, it all had to do

## History of Maxwell’s Equation

In 1865, James Clerk Maxwell wrote his famous (or infamously difficult) Maxwells equations. These equations

## How the Idea of Electromagnetic Waves Was Invented

How did Michael Faraday make electricity with magnets?  Hey, how does anyone make electricity with

## The Physics behind the Current War: Edison, Tesla, & Westinghouse (AC vs. DC)

In the late 1800s there was a battle between different types of electricity, alternating and

## How Thomas Edison Created a Light Bulb Empire

How did Thomas Edison go from poverty to creating an electric empire as well as

## Why Alexander Graham Bell Invented the Telephone

Alexander (Alec) Graham Bell invented and promoted the telephone due to the love of, and

## How does a Generator Work & How We Figured it Out

Most of our electricity comes from power plants that use a generator to, ahem, generate

## How Faraday Made Electricity with Magnets: Discovery of Induction, the Generator, & Magnetic Fields

How did Michael Faraday make electricity with magnets?  Hey, how does anyone make electricity with

## How Michael Faraday Discovered Induction, The Generator, and Magnetic Fields

How did Michael Faraday make electricity with magnets?  Hey, how does anyone make electricity with

## How a Real Life Dr. Frankenstein Inspired Mary Shelly & Birthed Electrobiology

Was there a real Dr. Frankenstein?  Yes, there was, his name was Giovanni Aldini and

## History of the Telegraph: How Samuel Morse Stole It & Became Famous

A scientist named Joseph Henry and a machinist/inventor named Alfred Vail invented the telegraph that

## How a Jar of Water Literally Shocked Thousands: How a Leyden Jar Works

Wait? How did a jar of water shock anyone?  And why?  Well, I’ll tell you

## Who Invented the Telegraph? Joseph Henry, A Bored Math Teacher!

Why would a math teacher named Joseph Henry invent the telegraph?  And didn’t Samuel Morse

## How An Electromagnet Works And How Was It Invented

To understand the electromagnet, it is helpful to take a moment to learn about its

## How Faraday Invented The Motor And Annoyed His Mentor

Why would inventing a motor irritate anyone?  And how did Faraday invent the motor in

## How Michael Faraday Invented the Motor and Irritated His Mentor

Why would inventing a motor irritate anyone?  And how did Faraday invent the motor in

## Oersted’s Experiment: Why it is important and Why it is so Weird

What was Oersted’s experiment?  Well, it was incredibly simple: Oersted put a compass near a

## Michael Faraday Biography: How Faraday Escaped Poverty with a Lot of Luck

What kind of luck did a brilliant scientist like Michael Faraday need to succeed?  It

## How Faraday Escaped Poverty With Luck

What kind of luck did a brilliant scientist like Michael Faraday need to succeed?  It