The Map of Physics

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Everything we know about physics – and a few things we don’t – in a simple map.

If you are interested in buying a print you can buy it as a poster here:

Or on a load of other objects:

Also you can download a digital version here:

I made the music, which you can find on my Soundcloud if you’d like to get lost in some cosmic jam.

Errata and clarifications.

I endeavour to be as accurate as possible in my videos, but I am human and definitely don’t know everything, so there are sometimes mistakes. Also, due to the nature of my videos, there are bound to be oversimplifications. Some of these are intentional because I don’t have time to go into full detail, but sometimes they are unintentional and here is where I clear them up.

1. “Isaac Newton invented calculus.” Actually there is controversy over who invented calculus first Isaac Newton or Gottfried Leibniz. Regardless of who it was I have used Leibniz’s mathematical notation here and so he definitely deserves credit. I did’t know about all this so thanks to those who pointed it out.
2. “Maxwell derived the laws of electromagnetism.” This is a simplification as Maxwell’s work was built on the backs of other scientists like Hans Christian Ørsted, André-Marie Ampère and Michael Faraday who discovered induction and saw that electricity and magnetism were part of the same thing. But it was Maxwell who worked out all the maths and brought electricity and magnetism together into a unified theory.
3. “Entropy is a measure of order and disorder”. This is also a simplification and this does a good job of explaining it better
4. Einstein and Quantum physics: I made it sound like quantum physics was built by people other than Einstein, but this couldn’t be further from the truth. Einstein got a Nobel prize for his work on the photoelectric effect which was a key result to show the particle-like nature of light. Funnily enough he never got a nobel prize for his work on Relativity!

Also, if you enjoyed this video, you will probably like my science books, available in all good books shops around the work and is printed in 16 languages. Links are below or just search for Professor Astro Cat. They are fun children’s books aimed at the age range 7-12. But they are also a hit with adults who want good explanations of science. The books have won awards and the app won a Webby.

Frontiers of Space:
Atomic Adventure:
Intergalactic Activity Book:
Solar System App:

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Bobby J says:

Do map of business categories

Patrick Horgan says:

I loved it. I like that you nuanced Dark Energy and Dark Matter as things that seem to explain mysteries but wish you'd been a little bit more careful to explain that we don't know they exist, just that postulating these things makes some mistakes in theories go away. They're useful shorthand for "The universe is different from our theoretical understanding in these particular ways but we don't yet know what that means". So many people don't understand that and think that we know things exist that are those things.
Also the chasm of ignorance should have also had a question mark for things that don't exist that we won't even know about until later. A placeholder. You do mention it. Might have also (if given more room?) mentioned that the big bang and all it's variations are also useful shorthand for we don't know but if we postulate this it leads to some interesting things that agree with what we see. You know, all the stuff at the edge. The lay public assumes these are fixed ideas.

Lucas James says:

Damn, you're hot, mister. 🙂

UFO Saucer says:

Animations are great

Khoa Nguyen says:

Would you mind making the map of biology?

Tanish singh says:

actually iam sorry to say that no one in this world could even imagine the directions of physics….telling about its map is a very far seeming milestone….the thing which is next to impossible

Yasmine AM says:

Love this!! Could you make a map of engineering?

wagfinpis says:

This was very good man!

You just did a brilliant job of drawing up your index; now we are all looki ng forward to fallowing your true fascinations… if your fasination is more social and informative, i think it is a great start!

I am personally fascinated in any data relating to the use of our minds andbbor bodies as the subject medium, like finding corrilaties between transcendental events and their most proximal allocations in physics for assumed phenomena…

memo boy says:

classical physics … more like boob physics

Galaxy Protector says:

Good luck to our future

Yuan Steven says:

do one for philosophy

Aidan Truel says:

when's the map of philosophy coming out?

Brian Fryer says:

10/10; would watch again. Keep it up!

dekphysics says:

good thank you

Suresh Kumar says:

Thank you….That's been a great help.


Excellent. Thank you


How physics related to mathematics ..describe in ur way

Geometry Dash Endermaster says:

Is there a branch of physics that deals with how objects transform from energy? (E.g. force required to fracture an object, patterns in fractured objects, transformation due to heat and force.)

Ketan Deshmukh says:

Loved the brief explanation

Lyuba Alexeievna Petrova says:

Thanks for making this. LOVE IT!

Shivani Sonu says:

Nice Video.. Really the way you gave a brief description was really good .

Jørgen Galdal says:

So Math IS related to Science…

Megha Maravi says:

This is brilliant! I am so thankful. Now I somehow know how to prepare my agenda. I was just randomly picking my topics but now I know I was wrong. All thanks to this video and the brains behind this.

name lastname says:

I dropped out of school pretty early and find your maps to be the perfect window for seeing the world around and our efforts at understanding it

Martin Pêcheur says:

How about quantum gravity…biology and theory of evolution…great presentations

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