I explain why it is called a square root, and also how a square root works. Clarifications: To keep this video simple I decided to not talk about complex numbers. But perhaps I should have mentioned complex numbers when talking about the...

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: North America='https://stelsedftba.com/products/map-objectsics-poster'...

Everything you need to know about gravitational waves. In February 2016 scientists announced the first detection of gravitational waves by humans on Earth. This was a huge, world changing, discovery. The gravitational waves were caused...

The entire field of mathematics summarised in a single map! This shows how pure mathematics and applied mathematics relate to each other and all of the sub-topics they are made from. If you would like to buy a poster of this map, they...

Your nose uses quantum tunnelling to smell! This crazy conclusion comes from the latest interpretations of the evidence about how our smell receptors detect odour molecules. This video summarises the two models of smell: shape theory and...

Biology is the subject that studies life in all its forms, from the simple cell through to all the animals that inhabit the planet. In this map I lay out the subject of biology and how all of the sub-disciplines are related to each...

Signup for your FREE trial to The Great Courses Plus hereref='http://ow.ly/crsQ30beNOZ' target='_blank' rel='nofollow'>here You are the living ancestor of an unbroken chain of lives stretching from you, through your mother and your...

You might not know that you use quantum technologies every day pretty much constantly. Here I have summarised five of them, but there are many others. Quantum physics is often seen as a weird part of physics, far removed from our every...

Find out what it takes for a quantum computer to beat a classical computer to achieve quantum supremacy. Check out this video's sponsor='https://brilliant.org/dos' target='_blank' rel='nofollow'>sponsor Quantum supremacy’s that...

Calculus is an incredibly useful tool for deriving new physics. Check out this video's sponsor='https://brilliant.org/dos' target='_blank' rel='nofollow'>sponsor Here is a brief description of calculus, integration and...

I sometimes read things about quantum computing that are not quite right, I clear some up here. Check out this video's sponsor='https://brilliant.org/dos' target='_blank' rel='nofollow'>sponsor Quantum computing is a hot topic these...

An introduction to the Interpretations of Quantum Mechanics. The first 500 people to sign up via my link will get two FREE months of Skillshare Premium='https://skl.sh/domainofscience' target='_blank' rel='nofollow'>Premium The...

This was a Professor Astro Cat talk I gave at the Vancouver Writers Festival in 2018 about space and space rockets. You can check out the Professor Astro Cat books hereref='http://profastrocat.com' taNewman_blank' rel='nofollow'>hebooks>...

The Map of Science explores what science really is. Check out this video's sponsor='https://brilliant.org/dos' target='_blank' rel='nofollow'>sponsor In this video I investigate what makes a science a science, and how the scientific...

Everyone is talking about the black hole image, which is amazing! But I've been wondering where actually is the black hole? So here it is. It is inbetween the virgo and leo constellations. Although you can't see it (unless you have a...