Every evening near Vancouver BC, a huge gathering of crows descend on a single block at Still Creek Drive, Burnaby. It is crazy!

Space in infinitely big with infinite stuff in it, but buy using the power of categorisation I can fit it all into a 12 minute video. Grab the poster here: https://store.dftba.com/collec....tions/domain-of-scie

This video explores all of the things in the Universe from our Earth and local Solar System, out to the Milky Way Galaxy and looks at all of the different kinds of stars from Brown Dwarfs to Red Supergiant Stars. Then to the things they explode into like white dwarfs, neutron stars and black holes. Then we look at all the other kinds of galaxy in the universe, blazars, quasars and out to the cosmic microwave background and the big bang. It covers most of the different things that we know about in the Universe.

#space #cosmology #DomainOfScience

--- References ---
Here are a couple of references I used for further reading.
Stars info
https://owlcation.com/stem/Dif....ferent-Types-of-Star
List of space objects
https://en.wikipedia.org/wiki/....Lists_of_astronomica

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#space #universe #cosmology #science

Narration by Dominic Walliman
Art by Dominic Walliman
Animated by Dominic Walliman
Edited by Dominic Walliman
Music by Jeremy Soule nah just kidding it was also by Dominic Walliman

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 by a pair of colliding black holes 1.3 billion light years away 1.3 billion years ago. This video summaries all the of the mind blowing facts about the gravitational waves and describes LIGO, the incredibly sensitive telescope that detected them.

#gravitationalwaves #space #DomainOfScience

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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, because my videos are summaries of some quite complex science, I make simplifications. 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. I got the month of the original detection wrong! It was September 2015, not November 2015. Silly me, my apologies.
2. “1.3 billion years ago, 1.3 billion light years away” This is incorrect and an oversight on my part. I completely forgot to take into account the expansion of the Universe. The resulting black hole is 1.3 billion light years from us today, but was closer to us when the collision happened, which means that it happened less than 1.3 billion years ago. I tried to work out exactly when but was stumped because I couldn’t find the function for the acceleration of the expansion of the universe. The redshift of the signal from the black holes was about 10%, so I thought the collision was 10% closer in time than 1.3 billion years i.e. 1.18 billion years, but I think it might be a bit more complicated than that.
3. LIGO schematic animation. I made a couple of silly errors here. The first circular mirror that the laser hits should be 90º to the way I oriented it: half the laser light is transmitted and half reflected, each one going up a different arm.
4. LIGO schematic animation. When the laser bounced back and forth it should bounce between the two suspended mirrors and not go all the way back to the diagonal mirror.
5. VIRGO is near Pisa, not at Trento as I drew on the map. I said the right thing but drew the wrong thing. My apologies.
6. ‘A second even more powerful collision.” Wrong again! The second collision was less powerful and the signal was more buried in the noise.

I’m not happy with the number of flat out mistakes I made on this one! I will try better in the future. I blame it on the Christmas spirits.

If you would like to find out more about gravitational waves and the detection here are the original papers and some very informative links.

Main LIGO scientific paper: http://journals.aps.org/prl/ab....stract/10.1103/PhysR
Supplementary LIGO paper: http://iopscience.iop.org/arti....cle/10.3847/2041-820

Articles:
http://physicsworld.com/cws/ar....ticle/news/2016/feb/
http://www.nature.com/news/the....-black-hole-collisio
http://www.businessinsider.com..../black-hole-collisio
http://www.space.com/33176-gra....vitational-waves-fro
http://www.ligo.org/science/Pu....blication-GW150914/i
http://www.nature.com/news/gra....vitational-waves-6-c
http://www.nature.com/news/the....-black-hole-collisio
What they sound like:
http://www.vox.com/2016/6/15/1....1948618/ligo-gravita

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: http://nobrow.net/shop/profess....or-astro-cats-fronti
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The field of computer science summarised. Learn more at this video's sponsor https://brilliant.org/dos

Computer science is the subject that studies what computers can do and investigates the best ways you can solve the problems of the world with them. It is a huge field overlapping pure mathematics, engineering and many other scientific disciplines. In this video I summarise as much of the subject as I can and show how the areas are related to each other.

#computer #science #DomainOfScience

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A couple of notes on this video:
1. Some people have commented that I should have included computer security alongside hacking, and I completely agree, that was an oversight on my part. Apologies to all the computer security professionals, and thanks for all the hard work!
2. I also failed to mention interpreters alongside compilers in the complier section. Again, I’m kicking myself because of course this is an important concept for people to hear about. Also the layers of languages being compiled to other languages is overly convoluted, in practice it is more simple than this. I guess I should have picked one simple example.
3. NP-complete problems are possible to solve, they just become very difficult to solve very quickly as they get bigger. When I said NP-complete and then "impossible to solve", I meant that the large NP-complete problems that industry is interested in solving were thought to be practically impossible to solve.

And free downloadable versions of this and the other posters here. If you want to print them out for educational purposes please do! https://www.flickr.com/photos/95869671@N08/

Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience

I also write a series of children’s science books call Professor Astro Cat, these links are to the publisher, but they are available in all good bookshops around the world in 18 languages and counting:
Frontiers of Space (age 7+): http://nobrow.net/shop/profess....or-astro-cats-fronti
Atomic Adventure (age 7+): http://nobrow.net/shop/profess....or-astro-cats-atomic
Intergalactic Activity Book (age 7+): http://nobrow.net/shop/profess....or-astro-cats-interg
Solar System Book (age 3+, available in UK now, and rest of world in spring 2018): http://nobrow.net/shop/profess....or-astro-cats-solar-
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This is my journey to find all of the fundamental constants of nature which took some surprising turns. Check out Brilliant who sponsored part of this video: https://brilliant.org/dos

When you learn physics, you very quickly encounter the physical constants of nature, things like the gravitational constant, the speed of light in a vacuum, planck's constant, the elementary charge things like that. These are numbers which we believe are the same everywhere in the universe, for all time. They are baked into our laws of physics and are very special, because if they were even a few percent different, then the Universe wouldn’t exist and neither would we. They are also fundamental because we can’t derive them from any underlying theory, we just have to take them as being true.

So I wanted to go on a quest to find all of the fundamental physical constants and collect them all together so you can see them all in one place, because that’s the kind of thing I do on this channel. So this video is the story of me doing that. But it took some fascinating twists and turns along the way, and the final set was definitely not what I was expecting, because it doesn’t actually include the ones we are familiar with, the ones I just mentioned: speed of light, gravitational constant, planck’s constant. Watch to find out why.

--- Links to source material ----
How many fundamental constants are there? By John Baez
https://math.ucr.edu/home/baez/constants.html
Note that his final set is a little different to mine which is explained in his article. I chose my set to be the easiest to understand.
Here are the actual numbers for all these dimensionless constants from David Black
https://math.ucr.edu/home/baez/constants_table.pdf

How fundamental are the fundamental constants?
https://arxiv.org/pdf/1412.2040.pdf

Dimensionless constants and cosmological measurements
https://arxiv.org/pdf/1304.0577.pdf

How do neutrinos get their mass?
https://www.symmetrymagazine.org/article/how-do-neutrinos-get-their-mass#:~:text=Trillions%20of%20neutrinos%20pass%20harmlessly,with%20any%20matter%20at%20all.&text=Neutrinos%20are%20a%20type%20of,interactions%20with%20the%20Higgs%20boson

Helpful wikipedia pages
https://en.wikipedia.org/wiki/Physical_constant
https://en.wikipedia.org/wiki/....Dimensionless_physic
https://en.wikipedia.org/wiki/....Fine-structure_const

#physics #quantum #DomainOfScience

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-- Some Awesome People ---
And many thanks to my $10 supporters on Patreon, you are awesome!
Theodore Chu
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Sebastian
Eric Epstein
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Join the gang and help support me produce free and high quality science content:
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--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
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--- Credits ---
Music, art, and everything else by Dominic Walliman

An excellent summary of the field of quantum computing. Find out more about Qiskit at https://qiskit.org and their YouTube channel https://www.youtube.com/c/qiskit
And get the poster here: https://store.dftba.com/collec....tions/domain-of-scie

With this video I aim to give a really good overview of the field of quantum computing with a clear explanation of how they work, why people are excited about quantum algorithms and their value, the potential applications of quantum computers including quantum simulation, artificial intelligence and more, and the different models and physical implementations people are using to build quantum computers like superconducting devices, quantum dots, trapped ions, photons or neutral atoms, and the challenges they face.

#quantumcomputer #quantum #domainofscience

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And many thanks to my $10 supporters and above on Patreon, you are awesome!
Join the gang and help support me produce free and high quality science content:
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Bob Milano
Raj Duphare
Ben
Anca Selariu
Eric Epstein
Gordon D Collins
Kamil Qbitskey
Mirik Gogri
noggieB
Petr Murmak
Prabhakar R
Reggie Fourmyle
Sandy Toye
Sebastian
Terrence Masson
Theodore Chu
Joshua Rauß

--- Special thanks ---
Special thanks for giving their time to help me with the script to:
Nicholas Bronn
Sergio Boixo
Stephanie Simmons

--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
https://store.dftba.com/collec....tions/domain-of-scie
http://profastrocat.com

--- Follow me around the internet ---
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--- Credits ---
Writer, art, animation and edited by Dominic Walliman
I use Adobe Illustrator and After Effects for the graphics (for the many people who ask :)

--- References ----
[1] Why qubits need so much storage space
https://quantumcomputing.stack....exchange.com/questio

[2] Storage space of the world
https://www.quora.com/Whats-th....e-worlds-total-data-

[3] Quantum Algorithms
https://en.wikipedia.org/wiki/....Quantum_algorithm?wp

[4] Models of Quantum Computing
https://quantumcomputing.stack....exchange.com/questio

[5] Topological Quantum Computing
https://www.quantamagazine.org..../major-quantum-compu

[6] Optical Lattice
https://www.mewburn.com/news-insights/creating-qubits-a-hot-lead-at-coldquanta?utm_campaign=ICT&utm_source=caitlin
ultracold atom quantum simulator
https://arxiv.org/abs/1901.01146

[7] Linear optical quantum computing (Xanadu)
https://arstechnica.com/scienc....e/2021/03/programmab
and
https://arstechnica.com/scienc....e/2020/12/un-computa

[8] Quantum computing overview
https://cen.acs.org/materials/....electronic-materials

[9] Linear photonic qubits
https://www.youtube.com/watch?v=62Y7uT26hzo
https://arstechnica.com/scienc....e/2021/03/programmab

[10] Google Roadmap
https://blog.google/technology..../ai/unveiling-our-ne

--- Chapters ---
00:00 Introduction
00:44 How Quantum Computers Work
06:19 Quantum Algorithms
12:01 Potential Applications of Quantum Computing
15:26 Models of Quantum Computing
17:29 Qiskit Sponsorship Message
19:29 Models of Quantum Computing Continued
24:59 Obstacles to Building a Quantum Computer
27:24 What Real Quantum Computers Are Made From
31:45 Summary

Mapping out all the different kinds of board games. To try everything Brilliant has to offer for free for a full 30 days, visit https://brilliant.org/DOS/ or scan the QR code onscreen. You’ll also get 20% off an annual premium subscription.
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Some Awesome People
And many thanks to my $10 supporters and above on Patreon, you are awesome!
Join the gang and help support me produce free and high quality science content:
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Tut Arom
Anja
Jason Evans
machinator rimor
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My Science Books
I also write science books for kids called Professor Astro Cat. You can see them all here:
https://flyingeyebooks.com/boo....k/professor-astro-ca
http://profastrocat.com

Credits
Writer, art, animation and edited by Dominic Walliman
I use Adobe Illustrator and After Effects for the graphics (for the many people who ask :)

Special Thanks to Richard Garfield and George Elias for their expertice and help.

Image attributions
Ludo Micha L. Rieser, Attribution, via Wikimedia Commons
https://upload.wikimedia.org/w....ikipedia/commons/1/1
Snakes and Ladders By Jain Miniature - http://www.herenow4u.net/index.php?id=72923, Public Domain, https://commons.wikimedia.org/....w/index.php?curid=11
Root image by Marco Bakera https://boardgamegeek.com/image/7102726/root

Chapters
00:00 Introduction
01:30 Abstract Games
03:29 Game Categorisation
05:23 Optimisation Mechanics
08:37 Interaction Mechanics
09:26 Board Game Adjacent Games
11:27 Stabbin’ in the Cabin
13:08 Casual Games
14:30 Settings and Themes
15:38 Eurogame vs. Ameritrash
17:36 Styles of Gameplay
19:33 Brilliant Ad

This is the Map of Quantum Physics and quantum mechanics covering everything you need to know about this field in one image. Check out this video's sponsor https://brilliant.org/dos
And grab this poster here: https://store.dftba.com/collec....tions/domain-of-scie

I’ve been fascinated with quantum physics and quantum mechanics for a very long time and I wanted to share the subject with you so I made this map of quantum physics to lay out the ideas within the subject, to set some bounds on it so you know its not endless and to introduce you to lots of concepts that if you are interested in them you can dig deeper. When you are approaching a subject like this that’s so complicated it can be quite challenging because you don’t know where to start and you don’t know how all the concepts relate to each other so hopefully this will put everything in context.

This playlist expands on this video with lots of other more specific videos that dive deeper: https://www.youtube.com/playli....st?list=PLOYRlicwLG3

#quantum #physics #DomainOfScience

If you’d like to support my free educational content: https://www.patreon.com/domainofscience

Big shoutout to everyone who gave me feedback on twitter about the poster and a special thank you to Sarah Johnson and Chris Ferrie for their excellent fact checking.
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-- Some Awesome People ---
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Theodore Chu
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Join the gang and help support me produce free and high quality science content:
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--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
http://profastrocat.com

--- Follow me around the internet ---
http://dominicwalliman.com
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--- Credits ---
Sound effects obtained from https://www.zapsplat.com
Music by Dominic Walliman
Additional music: Verified Picasso by Scary Island, Song of Sadhana by Jesse Gallagher.
Sherlock Holmes image by Sidney Paget

Quantum simulation is a really promising route to discover new technologies of the future by finding new materials with new physical properties. Check out the Qiskit YouTube channel here: https://www.youtube.com/qiskit and this is a good playlist to start with https://bit.ly/2KxqOIV

I’ve talked before about how quantum simulation is my favourite application of quantum computing, so I thought I’d make a video to explain why. And in this video, I run an actual quantum simulation on a real world quantum computer.


You can implement this specific simulation too with this video: https://youtu.be/Z-A6G0WVI9w

#QuantumComputing #threebythee #DomainOfScience

--- References ---

[1] Toward the first quantum simulation with quantum speedup
pnas.org/content/115/38/9456
[2] Waiting for the Quantum Simulation Revolution
https://physics.aps.org/articles/v12/112
[3] Quantum Simulation Overview
https://qtft.org/quantum-simulation/
[4] https://en.wikipedia.org/wiki/Quantum_simulator
[5] Losses in Transmission of Power
https://blog.se.com/energy-man....agement-energy-effic
[6] What room temp superconductors would mean
https://singularityhub.com/201....8/05/13/the-search-f
[7] 2020 room temperature superconductor
https://en.wikipedia.org/wiki/....Carbonaceous_sulfur_
[8] Carbon emissions from fertilizer creation
https://cbmjournal.biomedcentr....al.com/articles/10.1
[9] How many qubits you need to simulate certain molecules
https://dash.harvard.edu/bitstream/handle/1/4653262/1007.2648v1.pdf?sequence=1&isAllowed=y
[10] IBM quantum roadmap
https://www.ibm.com/blogs/rese....arch/2020/09/ibm-qua
[11] Google million qubits by 2030
https://www.technologyreview.c....om/2020/02/26/916744
[12] Simulating a quantum computer on a classical computer
https://phys.org/news/2020-01-simulate-quantum-bits-supercomputer-compression.html#:~:text=However%2C%20today's%20practical%20full%2Dstate,physical%20memory%20the%20limiting%20factor.

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-- Some Awesome People ---
And many thanks to my $10 supporters on Patreon, you are awesome!
Theodore Chu
Petr Murmak
Sebastian
Eric Epstein
Alex Polo
Kevin Delaney
Reggie Fourmyle
Mark Pickenheim
Raj Duphare

Join the gang and help support me produce free and high quality science content:
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--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
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--- Follow me around the internet ---
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The entire field of chemistry summarised in 12mins from simple atoms to the molecules that keep you alive.

#chemistry #DomainOfScience

If you would like to buy a poster of this map, they are available here: https://www.redbubble.com/peop....le/dominicwalliman/w

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and a widescreen version: https://flic.kr/p/UNA1LW

Errata and notes:
1. I got the Oxidising Agent and the Reducing Agent the wrong way around! Sodium is the Reducing agent and Chlorine is the Oxidising agent. My confusion was that when a sodium atom looses an electron it becomes oxidised, so in my simple brain, I called it the oxidising agent. That is wrong because the agent that oxidises the sodium is the chlorine atom and so the labels are the wrong way around. Doh!
2. I drew the hydrogen H2 molecule with a double bond but it should be a single bond because they are bonded with a single covalent bond.
3. Where I have drawn carbon dioxide, the carbon should have a double bond to each of the oxygens.
4. Apparently Feynman diagrams are not that useful for theoretical chemistry, so perhaps that wasn't the best choice for the illustration. The feedback in the comments from a real theoretical chemist is "All we deal with is shuffling around electrons, but many many many electrons, so a Feynman diagram would need to be huge but at the same time would be very very repetitive."
5. In analytical chemistry, I should have called it distillation rather than precipitation.
6. My definition of organic chemistry being about ‘life’ is not very good. I should have said that organic chemistry looks at compounds that contain carbon. But there are some compounds in inorganic chemistry that also contain carbon, like carbon dioxide so I guess I'd also have to state that inorganic chemistry is almost everything else.
7. I said that fuels are inorganic chemistry which is misleading when I drew a car next to it. My understanding is that there are inorganic fuels that don't contain carbon, but obviously all the fuels we are familiar with are organic. I thought a picture of a car would tie a few things together elegantly, but it ended up giving the wrong impression. That’s okay, I’m still learning! :D
8. In inorganic chemistry, I should have stated that all natural minerals fall under inorganic chemistry so as not to be misleading, otherwise you might go way thinking that only man-made substances fall under inorganic chemistry which is not true. I said that 'a lot of the inorganic compounds that are studied are man-made' meaning that the cutting edge of research is mostly man-made substances.
9. Apparently water is not the most inflammable substance. I thought it was so that is interesting.
10. In the bonding section, hydrogen bonding and van der waals forces are technically inter molecular forces.

Here are some of the references I used for this video if you’d like to dig a little deeper
https://en.wikipedia.org/wiki/Chemistry
https://en.wikipedia.org/wiki/Outline_of_chemistry
https://www.uwlax.edu/chemistr....y-and-biochemistry/s
https://www.khanacademy.org/science/chemistry
https://www.cancerquest.org/ca....ncer-biology/biologi
Early smelting:
http://ispatguru.com/evolution....-of-blast-furnace-ir
Categorisation of reactions
http://www2.ucdsb.on.ca/tiss/s....tretton/chem1/stoich

Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience

Frontiers of Space: http://nobrow.net/shop/profess....or-astro-cats-fronti
Atomic Adventure: http://nobrow.net/shop/profess....or-astro-cats-atomic
Intergalactic Activity Book: http://nobrow.net/shop/profess....or-astro-cats-interg
Solar System App: http://www.minilabstudios.com/....apps/professor-astro

Find me on twitter, instagram, and my website:
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The Map of Superconductivity poster is available here: https://store.dftba.com/collec....tions/domain-of-scie
Superconductivity is a fascinating property exhibited by many materials when they are cooled down to cryogenic temperatures to below a certain transition temperature. Below this temperature they lose all of their electrical resistance and they are able to conduct electricity with zero loss of energy. They also exhibit interesting magnetic effects including the total expulsion of magnetic fields from their interior due to superconducting eddy currents.
In this video I look at the different kinds of superconductors like type-I and type-II superconductors, and high temperature superconductivity, the theory behind them: Ginzberg-Lanadu theory and BCS theory,, and the applications of them in the real world which include superconducting magnets for MRI machines and particle accelerators, quantum devices like josephson junctions and S.Q.U.I.Ds for uses like quantum computing.
Digital version of this poster is here: https://www.flickr.com/photos/....95869671@N08/5128639

#physics #superconductivity #DomainOfScience

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-- Some Awesome People ---
And many thanks to my $10 supporters and above on Patreon, you are awesome!
Join the gang and help support me produce free and high quality science content:
https://www.patreon.com/domainofscience

Bob Milano
Joel Richmond
Raj Duphare
Alex Polo
Anca Selariu
David Renshaw
Eric Epstein
Hipotures
Kamil Qbitskey
Mark Pickenheim
noggieB
Petr Murmak
Prabhakar R
Reggie Fourmyle
Sandy Toye
Sebastian
Terrence Masson
Theodore Chu

--- Special Thanks ---
Special thanks to Mark Johnson for his error checking help.

--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
http://profastrocat.com

--- Follow me around the internet ---
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--- Credits ---
Presented, filmed, art, animation and edited by Dominic Walliman
I use Adobe Illustrator and After Effects for the graphics (for the many people who ask :)

--- Chapters ---
00:00 Intro
00:48 Zero Resistance and Magnetic Properties
02:53 Conditions Needed for Superconductivity
03:24 Phase Transitions and Phase Diagrams
05:48 Different Kinds of Superconductor
08:35 Theory of Superconductivity
10:49 Real World Applications of Superconductivity
12:51 The Future of Superconductivity

In this video I explain all the basics of particle physics and the standard model of particle physics. Check out Brilliant here: https://brilliant.org/DOS/
Buy the poster here: https://store.dftba.com/collec....tions/domain-of-scie
Digital version here: https://www.flickr.com/photos/95869671@N08

The standard model of particle physics is our fundamental description of the stuff in the universe. It doesn’t answer why anything exists, but does describe what exists and how it behaves, and that’s what we’ll be discovering in this video. We will cover the fermions, which contain the quarks and the leptons, as well as the bosons or force carriers. As well as which of the fundamental forces each of these fundamental particles interact with, along with the Higgs field. We’ll also look at the conservation rules of particle physics, symmetries in physics and the various quantum numbers that rule which particle interactions are valid and which are not.

#particlephysics #standardmodel #DomainOfScience

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-- Some Awesome People ---
And many thanks to my $10 supporters on Patreon, you are awesome!
Bob Milano
Alex Polo
Eric Epstein
Kevin Delaney
Mark Pickenheim
noggieB
Raj Duphare
Reggie Fourmyle
Sandy Toye
Sebastian
Terrence Masson

Join the gang and help support me produce free and high quality science content:
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--- Special Thanks ---
Special thanks to Sarah Johnson https://twitter.com/SJDJ and Henry Reich https://www.youtube.com/user/minutephysics for their fact checking help.

--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
http://profastrocat.com

--- Follow me around the internet ---
http://dominicwalliman.com
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--- Credits ---
Art, animation, presented by Dominic Walliman

References
[1] good summary
https://physics.info/standard/
[2] CPT symmetry
en.wikipedia.org/wiki/CP_violation
[3] Arvin Ash video
https://youtu.be/gkHmXhhAF2Y
[4] Conservation rules video
https://www.youtube.com/watch?v=dkFr3BGO8Dg
[5] More conservation rules
https://www.youtube.com/watch?v=qbf7y7Uv6d4
[6] Particle conservation laws
https://bit.ly/3pIb05M
[7] Short explanation of spin
https://bit.ly/2R7UIGV
[8] Short video explaining spin
https://youtu.be/cd2Ua9dKEl8
[9] Pauli exclusion principle
https://bit.ly/3mr4bF5
[10] The failure of supersymmetry
https://bit.ly/3uumFHn
[11] A nice summary of CP-symmetry
https://bit.ly/3t5WmqS

--- Chapters ---
00:00 Intro
00:28 What is particle physics?
01:33 The Fundamental Particles
02:13 Spin
3:52 Conservation Laws
5:01 Fermions and Bosons
7:40 Quarks
11:12 Color Charge
14:13 Leptons
16:39 Neutrinos
19:08 Symmetries in Physics
21:56 Conservation Laws With Forces
23:07 Summary So Far
23:36 Bosons
25:48 Gravity
26:52 Mysteries
28:24 The Future
29:08 Sponsor Message
30:12 End Ramble

Check out Brilliant here: https://brilliant.org/DOS/
Get the Map of Black Holes poster and Professor Astro Cat books here: https://store.dftba.com/collec....tions/domain-of-scie
This is the Map of Black Holes which isn’t a map of where all the black holes are in space, it’s a concept map of the subject of black holes: laying out our current knowledge of them. Their structure including Schwarzschild radius or event horizon, the singularity, photon sphere, innermost stable orbit, accretion disk, Hawking radiation and the difference between rotating and non-rotating black holes. I also look at the evidence for their existence, the many ways we have detected them though x-ray astronomy, gravitational wave astronomy and radio astronomy. Then the many outstanding mysteries still to be solved including wormholes, the holographic theory and information paradox. They are very fascinating objects indeed.


#blackholes #space #DomainOfScience


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I have also made posters available for personal or educational use which you can find here: https://www.flickr.com/photos/95869671@N08/


-- Some Awesome People ---
And many thanks to my $10 supporters and above on Patreon, you are awesome!
Join the gang and help support me produce free and high quality science content:
https://www.patreon.com/domainofscience


Bob Milano
Raj Duphare
Ben
Anca Selariu
Doug-Duggio Peterson
Eric Epstein
Hipotures
Kamil Qbitskey
Mirik Gogri
noggieB
Petr Murmak
Prabhakar R
Reggie Fourmyle
Sandy Toye
Sebastian
Terrence Masson
Theodore Chu
David Renshaw


--- Special Thanks ---
Special thanks to Douglas Scott and Henry Reich for their fact checking support.


--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
https://store.dftba.com/collec....tions/domain-of-scie
http://profastrocat.com


--- Follow me around the internet ---
http://dominicwalliman.com
https://twitter.com/DominicWalliman
https://www.instagram.com/dominicwalliman


--- Credits ---
Presented, filmed, art, animation and edited by Dominic Walliman
I use Adobe Illustrator and After Effects for the graphics (for the many people who ask :)


--- Chapters ---
00:00 Intro
01:32 Curvature of Spacetime
05:05 Black Hole Creation
07:39 Black Hole Classification
09:25 The Anatomy of Black Holes
14:35 Evidence for Black Holes and Observation Techniques
19:13 Theory of Black Holes
21:01 The Mysteries of Black Holes
25:37 Sponsor Message

Visit https://brilliant.org/dos/ to get started learning STEM for free, and the first 200 people will get 20% off their annual premium subscription.
And grab your posters here: https://store.dftba.com/collec....tions/domain-of-scie In this map of plants I summarise all of the different kinds of plants from algae all the way through bryophytes, ferns, gymnosperms, angiosperms, monocots, eudicots, rosids and asterids. I explain how they are related to each other due to their evolutionary history, and the features that make plants so successful, leaves, roots, a vascular system, spores, seeds, flowers and fruits.

Get My Posters Here

For North America visit my DFTBA Store: https://store.dftba.com/collec....tions/domain-of-scie
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I have also made posters available for personal or educational use which you can find here: https://www.flickr.com/photos/95869671@N08/

Special thanks
Special thanks to the researchers and staff at Kew https://www.kew.org/ for their help:
Lydia Shellien-Walker
Ilia Leitch
William Baker
Eddie Johnston
Sharon Willoughby

Some Awesome People
And many thanks to my $10 supporters and above on Patreon, you are awesome!
Join the gang and help support me produce free and high quality science content:
https://www.patreon.com/domainofscience

Anja
Eric Epstein
Jason Evans
Mirik Gogri
Raj Duphare
Reto Ingenieria
Sebastian
Theodore Chu
Tut Arom

My Science Books
I also write science books for kids called Professor Astro Cat. You can see them all here:
https://store.dftba.com/collec....tions/domain-of-scie
http://profastrocat.com

Follow me around the internet
http://dominicwalliman.com
https://twitter.com/DominicWalliman
https://www.instagram.com/dominicwalliman

Credits
Writer, art, animation and edited by Dominic Walliman
I use Adobe Illustrator and After Effects for the graphics (for the many people who ask :)

Additional Footage
- Big Trees And Moss Around Trees In Tropical Forest In Thailand Stock Footage provided by jamejones, from Pond5
- Scenic Nature Background Of Trees Covered With Moss In Deep Wet Forest Stock Footage provided by BananaRepublic, from Pond5
- California Super Bloom 2019 Dolly Shot Poppy Flowers In Lake Elsinore 04 4K Stock Footage provided by lovemushroom, from Pond5
- Daytime Timelapse Pacific Canadian Coast - Mountains & Ocean Stock Footage provided by JasonOpris, from Pond5
- 4K Video Of Rice Farming Landscape. Agriculture Background Stock footage provided by BananaRepublic from Pond5
- Wheat Field Of Gold Color. Real Time. Stock footage provided by Don_Rebe from Pond5
- Organic Golden Ripe Ears Of Wheat In Field, Soft Focus, Closeup, Agriculture Stock footage provided by stststst from Pond5
- Yellow Sunflower Flowers. Agricultural Land. Stock footage provided by kenonl from Pond 5
- Morning In A Forest. Summer Landscape Stock Media provided by nadiya_sergey / Pond5
- Low Flight Over Backlit Agricultural Sprinklers In Field - Aerial Drone Stock Media provided by neelix3k / Pond5
- Pink Sakura Tree Flowers Stock Media provided by nao988 / Pond5
- Green Caterpillar On Grass Macro Stock Footage provided by Mikko, from Pond5
- Zooming Into A Flower Head Stock Media provided by studiofi / Pond5
- White Chamomiles Blossom In Summer Field. Beautiful White Chamomiles. Chamomile Stock Media provided by mishelvermishel / Pond5

Chapters

00:00 Introduction
01:01 Algae
03:32 Land Plants and Bryophytes
04:36 Vascular Plants and Ferns
06:24 Seed plants and Gymnosperms
07:26 Fungi and Lichens
08:26 Angiosperms the Flowering Plants
10:52 Angiosperm Minor Groups
11:53 Monocots
12:53 Eudicots
14:02 Early Diverging Eudicots
15:14 Rosids
17:12 Asterids
18:20 Brilliant

Why don’t we have a theory of quantum gravity yet? I explore why it has been so difficult. Check out this video's sponsor https://brilliant.org/dos
Our best theories of physics are incomplete, quantum mechanics and general relativity don’t work when we try and put them together so physicists have been looking for a grand unifying theory of quantum gravity for decades, and so far have failed. This is because it is virtually impossible to make an experiment where the large and small scales meet, so we look to the places in our universe where this happens naturally: black holes and the big bang via the cosmic microwave background. In this video I explain what our best theories are and how we are trying to get to a theory of quantum gravity.

#quantumgravity #ThreeByThree #DomainOfScience

If you’d like to support my free educational content: https://www.patreon.com/domainofscience

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I have also made posters available for educational use which you can find here: https://www.flickr.com/photos/95869671@N08/

-- Some Awesome People ---
And many thanks to my $10 supporters on Patreon, you are awesome!
Theodore Chu
Sebastian
Eric Epstein
Alex Polo

Join the gang and help support me produce free and high quality science content:
https://www.patreon.com/domainofscience

--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
http://profastrocat.com

--- Follow me around the internet ---
http://dominicwalliman.com
https://twitter.com/DominicWalliman
https://www.instagram.com/dominicwalliman

--- Credits ---
Sound effects obtained from https://www.zapsplat.com
Music by Dominic Walliman

Arguably the most likely way we will first discover alien life on another planet will be using the power of atomic spectroscopy. You can grab the Map of Quantum Physics here https://store.dftba.com/collec....tions/domain-of-scie

Aliens will most likely leave a tell tale trace of their life in the atmosphere’s of their planet. But how do we know what chemicals the atmosphere of a distant planet contains? The answer is atomic spectroscopy. If we see a planet passing in front of it’s star, some of that starlight is absorbed in a very specific pattern called an atomic absorption spectrum. Each element has a specific pattern like a barcode, so through careful analysis of the light it can tell us which gasses are in the atmosphere and their proportions. We already use this technique for other space objects like stars and nebulae, measuring properties like temperature, density, ionization and relative velocity. This is a gift that nature and quantum physics has given us and the majority of what we know about the universe is based on this technique.

#spectroscopy #ThreeByThree #DomainOfScience

If you’d like to support my free educational content: https://www.patreon.com/domainofscience

--- Posters ----
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I have also made posters available for educational use which you can find here: https://www.flickr.com/photos/95869671@N08/

-- Some Awesome People ---
And many thanks to my $10 supporters on Patreon, you are awesome!
Theodore Chu
Petr Murmak
Sebastian
Eric Epstein
Alex Polo
Kevin Delaney

Join the gang and help support me produce free and high quality science content:
https://www.patreon.com/domainofscience

--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
http://profastrocat.com

--- Follow me around the internet ---
http://dominicwalliman.com
https://twitter.com/DominicWalliman
https://www.instagram.com/dominicwalliman

--- Credits ---
Music and SFX by Dominic Walliman

Calculus is an incredibly useful tool for deriving new physics. Check out this video's sponsor https://brilliant.org/dos

Here is a brief description of calculus, integration and differentiation and one example of where it is useful: deriving new physics. In this video I start with a very simple derivation which shows the relationship between momentum and kinetic energy, and then show a simple introduction to integration and differentiation.

When I learned physics at University one of the most satisfying experiences was getting to grips with calculus enough to use it to derive equations as it allowed me to wield mathematics to describe the world, which felt awesome.

#mathematics #calculus #DomainOfScience

I have posters available to buy here: https://www.redbubble.com/people/dominicwalliman
I have also made versions available for educational use which you can find here: https://www.flickr.com/photos/95869671@N08/

Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience

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 over 20 languages. Links are below or just search for Professor Astro Cat. They are fun children's books aimed at the age range 4+ and 7+. 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: http://nobrow.net/shop/profess....or-astro-cats-fronti
Atomic Adventure: http://nobrow.net/shop/profess....or-astro-cats-atomic
Human Body Odyssey: http://nobrow.net/shop/profess....or-astro-cats-human-
Solar System Book (age 4+): http://nobrow.net/shop/profess....or-astro-cats-solar-
Solar System App: http://www.minilabstudios.com/....apps/professor-astro

Find me on twitter, instagram, and my website:
http://dominicwalliman.com
https://twitter.com/DominicWalliman
https://www.instagram.com/dominicwalliman
https://www.facebook.com/domainofscience
https://www.patreon.com/domainofscience

Baffled by equations, well no more! Continue learning at this video's sponsor https://brilliant.org/dos

Lots of people find mathematical equations intimidating because they don't make sense. But they are not hard to understand if you follow a few steps, anyone can learn to read them. And it is well worth it because they are so incredibly useful to describe everything in math and physics. If you already know I'm sure you know someone who might like this video, I'm going to send it to my family who are less mathematically inclined than me.

The steps you need to know are: 1. Find the variables, 2. Work out what all of the different mathematical symbols mean, 3. Wok out what order you would perform the mathematical operations if you were going to plug numbers in to the equations. These steps really help you get your head around what an equation is telling you. Also, don't be scared about the greek letters, they do just the same thing as normal letters, they either represent constants or variables.

#mathematics #equations #DomainOfScience

The Math Notation Cheat Sheet is here: https://www.flickr.com/photos/....95869671@N08/4054401
And available to buy here: https://www.redbubble.com/peop....le/dominicwalliman/w
Get high res versions by supporting me on Patreon: https://www.patreon.com/domainofscience

POSTERS: I have other posters available to buy here: https://www.redbubble.com/people/dominicwalliman

I have also made a version available for educational use which you can find here: https://www.flickr.com/photos/95869671@N08/?

Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience

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 over 20 languages. Links are below or just search for Professor Astro Cat. They are fun children's books aimed at the age range 4+ and 7+. 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: http://nobrow.net/shop/profess....or-astro-cats-fronti
Atomic Adventure: http://nobrow.net/shop/profess....or-astro-cats-atomic
Human Body Odyssey: http://nobrow.net/shop/profess....or-astro-cats-human-
Solar System Book (age 4+): http://nobrow.net/shop/profess....or-astro-cats-solar-
Solar System App: http://www.minilabstudios.com/....apps/professor-astro

Find me on twitter, instagram, and my website:
http://dominicwalliman.com
https://twitter.com/DominicWalliman
https://www.instagram.com/dominicwalliman
https://www.facebook.com/domainofscience


_____________________________
This is a cheat sheet with a lot of the basic mathematical notation you will come across in popular science.

This ties in with a youtube video which you can watch here: https://youtu.be/Kp2bYWRQylk

And if you would like to buy it as a poster or sticker you can get hold of it here: https://www.redbubble.com/peop....le/dominicwalliman/w
_______________________________
Tags:
math, mathematics, equation, formula, explainer, algebra, constants, variables, science, animation, maths, calculus, trigonometry, scicomm, stem

Microsoft have just announced their first topological qubit for their future quantum computers. They use a brand new material to science known as a topological superconductor which gives the qubits some robust proteciton against noise
Find out more on Microsoft's blog: https://azure.microsoft.com/en-us/blog/quantum/

Not only is this the first time a commercial company is sending people into space, it is also the first crewed mission to the International Space Station to be launched from American soil in 9 years since the Space Shuttle was decommissioned. On the 27th of May SpaceX will make spaceflight history by being the first commercial company to transport humans to the ISS on a Falcon9 rocket in the SpaceX Dragon Crew spacecraft. This is the beginning of commercial spaceflight and potentially the beginning of space tourism.

#spacex #NASA #DomainOfScience

--- Credits --
NASA image and Video library https://images.nasa.gov/
Music: Verified Picasso by Scary Island, Song of Sadhana and Spenta Mainyu by Jesse Gallagher.

If you’d like to support my free educational content: https://www.patreon.com/domainofscience

--- Posters ----
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I have also made posters available for educational use which you can find here: https://www.flickr.com/photos/95869671@N08/

-- Some Awesome People ---
And many thanks to my $10 supporters on Patreon, you are awesome!
Theodore Chu
Sebastian
Duong Nguyen
Eric Epstein

Join the gang and help support me produce free and high quality science content:
https://www.patreon.com/domainofscience

--- My Science Books ----
I also write science books for kids! You can see them all here:
http://profastrocat.com

--- Follow me around the internet ---
http://dominicwalliman.com
https://twitter.com/DominicWalliman
https://www.instagram.com/dominicwalliman