Animated Physics · 19,900 subscribers · 509,000 views

You passed the exam.
You still cannot say
what the equation means.

That is not your fault. Physics is taught as a set of manipulations you perform on symbols, and almost nobody stops to tell you what the symbols are saying.

This book takes the twelve equations that carry modern physics and, for each one, answers the question your course skipped: what does this actually claim about the world? Plain English first. Symbols second. Then the derivation, the picture, the misconception it kills, and where it breaks.

Get the book, $47 See the twelve equations ↓

Instant PDF · Reads on a phone · 30-day refund · Free lifetime updates

01 · What understanding costs

Every other way of fixing this is more expensive

Not by a little. The gap between "I can do the algebra" and "I understand it" is normally closed by paying somebody, buying something enormous, or repeating a year.

Retaking a semestertuition, time, and the rest
$1,500+
One physics textbooknew, current edition
$280
Three hours of tutoringgets you through one topic
$195
One online courseon a single subject
$80
This bookall twelve, once, yours
$47

Representative prices for a current university physics text, private tutoring at standard rates, and a single-subject online course. Yours will vary by country and institution. The shape is what matters.

A textbook tells you how to calculate.
This tells you what you just calculated.

02 · Contents

The twelve equations

Each chapter runs the same seven steps: plain English, every symbol defined, the derivation reduced to its load-bearing move, the picture, the misconception it kills, where it breaks, and one worked problem done slowly.

  1. 01

    Newton's second law

    Kills: the idea that F = ma is just a definition of force

  2. 02

    Universal gravitation

    Kills: the idea that gravity is a force pulling things down

  3. 03

    Conservation of energy

    Kills: the idea that energy is a substance you can run out of

  4. 04

    The principle of least action

    Kills: the idea that an object somehow chooses its path

  5. 05

    The second law and entropy

    Kills: the idea that entropy means disorder

  6. 06

    The wave equation

    Kills: the idea that a wave carries matter along with it

  7. 07

    Maxwell's equations

    Kills: the idea that electricity and magnetism are two different things

    You have seen the video. This is the written version, with the derivation.

  8. 08

    The Lorentz transformation

    Kills: the idea that relativity is about what you see

    Pairs with the speed of light video.

  9. 09

    E = mc2

    Kills: the idea that mass converts into energy

  10. 10

    The Einstein field equation

    Kills: the rubber sheet

  11. 11

    The Schrödinger equation

    Kills: the idea that the wavefunction is a real wave in space

    Includes the tunneling calculation from the video, worked in full.

  12. 12

    The uncertainty principle

    Kills: the idea that measuring is what disturbs the particle

03 · What you receive

Everything in the package

PartItemValue
AP-001 The Physics Nobody ExplainedTwelve chapters, one equation each, seven steps every time $47
AP-002 The Twelve Equation CardsOne printable page per equation. What it says, what each symbol is, where it breaks. Stick them above your desk $19
AP-003 The Math ToolkitOnly the mathematics the twelve actually need: vectors, partial derivatives, the divergence and the curl, complex numbers. Nothing else $19
AP-004 The Misconception IndexEvery wrong belief the book corrects, listed with the page that corrects it. Look up what you think you know $14
AP-005 Lifetime updatesEvery future edition, free, to the same email, forever $21
Total value$120
19,900
Subscribers
509K
Views
3
Videos, no filler

Three videos. Roughly 127,000 views each. The audience is not here for wonder, it is here because somebody finally explained the thing properly.

From the channel

The most watched explanations

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04 · Why this book exists

The same comment, under every video.

Some version of: I sat through a whole course on this, I passed it, and I could not have told you what the equation was claiming about the world.

That is a strange thing to be true of the most successful description of nature ever written, and it is not because the material is too hard. It is because the material is almost always taught as a procedure. Here is the formula, here is how to rearrange it, here are forty problems. The one question that would make the whole thing click, what is this sentence actually saying, gets skipped because it is not examinable.

A video answers that question for one equation at a time, and then it is gone into a feed. This book answers it for the twelve that matter, in a form you can keep open next to your actual work.

05 · Order

The whole thing, once, $47.

$120 of material $47 One payment. No subscription.

Launch price ends Sunday.  

Get the book
  • Instant PDF. Reads on a phone, a tablet, or printed
  • 30-day refund. Email, no questions, money back same day
  • Every future edition free, forever

The guarantee, in plain words

Read it. Pick the equation you were most confident you already understood, and read that chapter. If it does not change what you thought that equation was saying, reply to the receipt and ask for a refund. You keep the files. No form, no reason required, refunded the day I read it.

Studying on a student budget, or in a country where $47 is not a reasonable price for a book? Email before you buy. Nobody who genuinely wants this gets turned away over the price.

06 · Questions

Before you buy

How much maths do I need?

Comfort with algebra, and having met derivatives once. Everything beyond that, vectors, partial derivatives, divergence, curl, and complex numbers, is built from scratch in the Math Toolkit, which exists precisely so the chapters do not have to stop and apologise. If you have done a first year of university physics or a good high school course, you are past the bar.

Is this a textbook replacement?

No, and it does not try to be. A textbook teaches you to calculate and gives you four hundred problems. This teaches you what the thing you are calculating means. They work well together, and most readers use this alongside a course rather than instead of one.

I already watched the videos. Is this the same content?

Four of the twelve chapters overlap with published videos, and even those go further, because a written derivation can be followed line by line at your own speed in a way a video cannot. The other eight have never been covered anywhere on the channel.

Is it rigorous or is it hand-waving?

Rigorous where rigour changes your understanding, and explicit about it when a step is being sketched rather than proved. Where a full derivation would take twenty pages and teach you nothing, the book says so and shows the load-bearing move instead. It never pretends an analogy is a proof.

What format is it?

A single PDF, set for reading on a phone and for printing. The equation cards and the misconception index are laid out to be printed on their own.