There is an entire branch of math simply devoted to knots – and it has changed the world. We’ll rope you in. Head to https://brilliant.org/veritasium to start your free 30-day trial, and the first 200 people get 20% off an annual premium subscription.

Special thanks to our Patreon supporters! Join the community to help us keep our videos free, forever:
https://ve42.co/PatreonDEB

▀▀▀
Huge thanks to Prof. Colin Adams for his excellent help guiding us through the world of knots.
Many thanks to Prof. Doug Smith, Dorian Raymer, Prof. David Leigh, and Prof. Dorothy Buck for helping us understand applications of knot theory.
Many thanks to Prof. Dan Silver & Prof. Jim Hoste for speaking with us about the history and tabulation of knots.

If you want to learn more about knots and play with them yourself, check out:
The amazing KnotPlot tool — https://knotplot.com/. Thanks to Rob Scharein for providing technical help as well!
A table of knots and all their invariants — https://knotinfo.math.indiana.edu/
The Knot Atlas for general info on knots — http://katlas.org/wiki/Main_Page

▀▀▀
Knot Theory Video References – https://ve42.co/KnotTheoryRefs

Images & Video:
Alexander Cutting the Gordian Knot by Donato Creti via Fine Art America - https://ve42.co/GordianCut
Indus Valley tablet via Quora - https://ve42.co/IndusValley
Pages from the Book of Kells via National Trust of Scotland - https://ve42.co/BookOfKells
Medieval Celtic designs from @thebookofkellsofficial via Instagram - https://ve42.co/KellsInsta
Chinese knotwork by YWang9174 via Wikimedia Commons - https://ve42.co/Panchang
Quipu cords by Pi3.124 via Wikimedia Commons - https://ve42.co/Quipu
Borromeo heraldry via Terre Borromeo - https://ve42.co/Borromeo
Birman/Jones letter via Celebratio Mathematica - https://ve42.co/JonesBirman
Molecular trefoil knot by M stone via Wikimedia Commons - https://ve42.co/TrefoilMolecule
X-ray structure of trefoil knot by Ll0103 via Wikimedia Commons - https://ve42.co/XrayTrefoil
Bacteria animation from Your Body's Molecular Machines by Drew Berry via the Walter and Eliza Hall Institute of Medical Research - http://wehi.tv
Topoisomerase and knots from Orlandini et al. Synergy of topoisomerase. PNAS, vol. 116, no. 17, 2019, pp. 8149–8154. – https://ve42.co/Orlandini2019
KnotProt 2.0: A database of proteins with knots and slipknots - https://ve42.co/Knotprot

▀▀▀
Special thanks to our Patreon supporters:
Anton Ragin, Balkrishna Heroor, Bernard McGee, Bill Linder, Burt Humburg, Dave Kircher, Diffbot, Evgeny Skvortsov, Gnare, Jesse Brandsoy, John H. Austin, Jr., john kiehl, Josh Hibschman, Juan Benet, KeyWestr, Lee Redden, Marinus Kuivenhoven, Mario Bottion, MaxPal, Meekay, meg noah, Michael Krugman, Orlando Bassotto, Paul Peijzel, Richard Sundvall, Sam Lutfi, Stephen Wilcox, Tj Steyn, TTST, Ubiquity Ventures

▀▀▀
Directed by Emily Zhang
Written by Emily Zhang and Derek Muller
Edited by Trenton Oliver
Animated by Fabio Albertelli, Ivy Tello, Jakub Misiek, and Mike Radjabov
Filmed by Derek Muller, Raquel Nuno, and Emily Zhang
Produced by Emily Zhang, Han Evans, and Derek Muller

Thumbnail by Ignat Berbeci and Mike Radjabov
Additional video/photos supplied by Getty Images and Pond5
Music from Epidemic Sound

For more episodes and free, supporting teachers' notes: https://www.bbc.co.uk/teach/sc....hool-radio/assemblie

Each year on 14 February we celebrate St Valentine's Day by giving our loved ones cards or gifts, such as flowers or chocolates. But who was Valentine and what do we know of him?

This short film is from the series Patron Saints.

It is designed to be a classroom resource suitable for teaching Religious Studies at KS1/2 in England, Wales and Northern Ireland, and 1st and 2nd Level in Scotland.

For more content like this, visit the BBC Teach website. Whether you're at home or at school, you can use BBC Teach for free. Our website is home to thousands of free curriculum-mapped videos, arranged by age-group and subject: https://www.bbc.co.uk/teach

Subscribe to the BBC Teach YouTube channel: https://www.youtube.com/bbctea....ch?sub_confirmation=

Get in touch via Facebook: https://www.facebook.com/BBCTeach/

Find more resources on BBC Bitesize: https://www.bbc.co.uk/bitesize

Visit https://ABCmouse.com/LearnMore to find out more about our award-winning online learning program for children 2–8!

Watch more video testimonials and preview our site/app content by subscribing to our YouTube channel: https://YouTube.com/ABCmouse.

© Age of Learning, Inc. All rights reserved.

You've built your own games, now build your own controller! Bloxels creator Rob Bennet shows you how games in Bloxels 2.0 can be played using a Makey Makey controller.

► LINKS!

🕹️ Bloxels Arcade: https://arcade.bloxels.co/

🏗️ Web Builder: https://build.bloxels.co/

👾 Buy a Bloxels Kit: https://store.bloxelsbuilder.c....om/collections/get-s

🍌 Makey Makey: https://www.makeymakey.com/

-----

★ Play "Tiny Wizard Bomber" by eleasman https://arcade.bloxels.co/88374670

-----

► Follow Bloxels!

📷 : https://www.instagram.com/bloxels

🐦 : https://www.twitter.com/bloxels

-----

► Get a Bloxels Home Account: https://www.bloxels.com/?jumpTo=buy

-----

► Educational Accounts

Check out bloxels.com/education to learn more, and check out bundles and discounts on our store: https://store.bloxelsbuilder.com/

-----

★ Featured Fridays

Do you have a Bloxels game you are really proud of? Or maybe you came across a really cool game in the Arcade and think it deserves more attention? Please comment your game I.D.s or URLs so we can check them out and possibly feature them in a future video!

-----

🚀 Become an AI Master – All-in-one AI Learning https://aimaster.me/pro

What should never be typed into ChatGPT? What are the forbidden commands for this neural network? In this video, I will tell you about what you definitely shouldn’t ask this artificial intelligence! You may be surprised when you find out about these requests! Since ChatGPT has been getting more and more popular lately, I thought I'd tell you how to use it wisely! So be sure to watch this video from beginning to end to find out what you should never enter into ChatGPT, and what will happen if you ask this neural network!

Dorado Learning has an exclusive range of products K-12 products. Our products are already used by over 100,000 students world wide. The range includes K-12 2D and 3D animation library of over 50,000 modules. The modules are structured in a molecular format so that they can be mapped with any curriculum easily.

Install Raid for Free ✅ IOS/ANDROID/PC: https://clcr.me/SimpleHistory_May23 and get a special starter pack with an Epic champion ⚡️Knight Errant⚡️ Available only for new players.

Masterminded in the latter half of World War I, the German trench strategy called Defence in Depth proved to be a much more formidable and sustainable system than the earlier 'hold the front line even if it creates rivers of blood' tactic.

Check out our other Channel: https://www.youtube.com/channe....l/UCPdc6bs3I8s6Y4QE_
Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory

Copyright: DO NOT translate and re-upload our content on Youtube or other social media.

SIMPLE HISTORY MERCHANDISE

Get the Simple History books on Amazon:

https://www.amazon.com/Daniel-....Turner-%60/e/B00H5TY

T-Shirts

https://teespring.com/stores/s....imple-history-offici

Simple history gives you the facts, simple!

See the book collection here:

Amazon USA

http://www.amazon.com/Daniel-Turner/e/B00H5TYLAE/


Amazon UK
http://www.amazon.co.uk/Daniel....-Turner/e/B00H5TYLAE


https://www.facebook.com/Simpl....e-History-5494376751

https://twitter.com/SimpleHistoryYT


Credit:
Show Created by Daniel Turner (B.A. (Hons) in History, University College London)
Narrator:

Chris Kane
https://vocalforge.com/

This chemistry video tutorial explains how the photoelectric effect works. It also explains how to use the work function of metals to calculate the threshold frequency and maximum wavelength of light necessary to eject an electron off the surface of an active metal. In addition, it explains how to calculate the speed of an electron as well as the kinetic energy of an electron in electron volts. You need to know how to convert electron volts to joules and vice versa. This video provides all of the formulas and equations needed including plenty of practice problems and examples.

Speed of Light, Frequency, Wavelength:
https://www.youtube.com/watch?v=LgYMxH1LCdo

Photon Energy:
https://www.youtube.com/watch?v=PYNSopwd1l4

The Photoelectric Effect:
https://www.youtube.com/watch?v=-LECEvusk8E

De Broglie Wavelength:
https://www.youtube.com/watch?v=cYyFPFU6s_A

The Bohr Model of Hydrogen:
https://www.youtube.com/watch?v=mXxsT1ut35Q

Heisenberg's Uncertainty Principle:
https://www.youtube.com/watch?v=BNYz5EKXVeI

________________________________
Intro to Quantum Numbers:
https://www.youtube.com/watch?v=eRIN9CPDrpo

Orbitals & Atomic Energy Levels:
https://www.youtube.com/watch?v=4sLXUr2HWIs

Maximum Number of Electrons:
https://www.youtube.com/watch?v=UNE-7AuiMGs

Intro to Electron Configuration:
https://www.youtube.com/watch?v=NIwcDnFjj98

Electron Configuration Exceptions:
https://www.youtube.com/watch?v=Ur2PuzJ7KWs

Noble Gas Notation:
https://www.youtube.com/watch?v=6MAKMnZdfbs

Electron Configuration of Ions:
https://www.youtube.com/watch?v=nlZa8lN_-Ds

_______________________________
Orbital Diagrams:
https://www.youtube.com/watch?v=6dRdMy9tgzE

Paired & Unpaired Electrons:
https://www.youtube.com/watch?v=xwWJf48yfNs

Aufbau's Principle & Hund's Rule:
https://www.youtube.com/watch?v=C6afrc1QS6Y

Paramagnetic & Diamagnetic Elements:
https://www.youtube.com/watch?v=SO983iq9GaI

Valence Electrons & Periodic Table:
https://www.youtube.com/watch?v=FPk2ziB9iX0

Effective Nuclear Charge:
https://www.youtube.com/watch?v=JDsMR1bHGO4

_________________________________
Slater's Rule:
https://www.youtube.com/watch?v=TaYUOiEe6OA

How To Identify The Element:
https://www.youtube.com/watch?v=4qwJIJUaIeQ

Quantum Numbers - Mega Review:
https://www.youtube.com/watch?v=lPptuKlCM6k

Quantum Numbers - Practice Test:
https://www.youtube.com/watch?v=E-nOH18dF-c

Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

Un nuevo video para que puedas aprender español online con preguntas y respuestas:

¿Tienes hijos?
¿Tienes un coche?
¿Estas casada?
¿Sabes nadar?
¿Sabes cocinar bien?
¿Cómo te sientes?
¿Te gusta?
¿Que lées?
¿Qué tiempo hace?

Un montón de preguntas y respuestas para que puedas practicar como hacer preguntas.

Recuerda suscribirte a nuestro canal!🔔

Thank you to our sponsor Ridge Wallets. Get 10% off today —WITH FREE WORLDWIDE SHIPPING AND RETURNS—by going to https://www.ridge.com/SIMPLEHISTORY and use code “SIMPLEHISTORY”.

Salomon was not truly recognised for his selfless heroism and sacrifice until 2002, nearly sixty years after his death, when he was finally awarded America’s highest military honour, the Medal of Honor.

Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory

Copyright: DO NOT translate and re-upload our content on Youtube or other social media.

SIMPLE HISTORY MERCHANDISE

Get the Simple History books on Amazon:

https://www.amazon.com/Daniel-....Turner-%60/e/B00H5TY

T-Shirts

https://teespring.com/stores/s....imple-history-offici

Simple history gives you the facts, simple!

See the book collection here:

Amazon USA

http://www.amazon.com/Daniel-Turner/e/B00H5TYLAE/


Amazon UK
http://www.amazon.co.uk/Daniel....-Turner/e/B00H5TYLAE


https://www.facebook.com/Simpl....e-History-5494376751

https://twitter.com/SimpleHistoryYT


Credit:
Created by Daniel Turner
Script: Conan White
Narrator:

Chris Kane
https://vocalforge.com/

Sources:
https://pastebin.com/H2GCcLnY

Join Miracle for a heartwarming storytelling session featuring 'Big Bug and Little Bug.'

Visit https://www.abcmouse.com/learn/youtube to find out more about our award-winning online learning program for children 2–8!

Watch more songs, stories, and more by subscribing to our YouTube channel: https://youtube.com/abcmouse

© Age of Learning, Inc. All rights reserved.

Let's learn all about Math!

Subscribe to KLT: https://www.youtube.com/channe....l/UC7EFWpvc1wYuUwrtZ

Get the all new KLT merch today at https://kidslearningtubeshop.com/

Check out KLT's newest videos: https://youtube.com/playlist?l....ist=PLmIHwWY0hiuyOsg
Watch KLT's most popular videos: https://youtube.com/playlist?l....ist=PLmIHwWY0hiuwJoM

KLT is the quintessential destination to learn the wonders of astronomy, earth science, geography and more through original music and animation. Our goal is to deliver a fun and unique way to learn about the universe around us for learners of all ages -- tune in each week for a new video!

Get the KLT App for iOS: https://apps.apple.com/us/app/....kids-learning-tube/i

Get the KLT App for Android: https://play.google.com/store/....apps/details?id=com.
Watch KLT ad-free for $12 a year! https://kidslearningtubeshop.com/products/video-membership

KLT Website: https://kidslearningtubeshop.com/
KLT Music Downloads: https://kidslearningtubeshop.com/collections/music
Facebook: https://www.facebook.com/kidslearningtube
Tweet Us: https://twitter.com/learningtube
Instagram: https://instagram.com/kidslearningtube
iTunes: http://itunes.apple.com/album/id1192890817?ls=1&app=itunes

#KLT #space

You probably don’t understand how a rainbow really works. Get a little smarter every day with Brilliant. Visit https://brilliant.org/veritasium to get 20% off your annual premium subscription.

Special thanks to Mats Vermeeren.

00:00 Most people don't understand rainbows
01:08 Light refraction explained
08:20 How does a rainbow form?
13:10 Circular rainbows
15:14 Why are rainbows curved?
17:30 Why can’t you see a rainbow with sunglasses?
18:43 Why is it brighter underneath a rainbow?
20:44 Different types of rainbow
23:46 Invention of the cloud chamber

▀▀▀
Join us on Patreon for early access videos, bonus content, and to support Veritasium! https://ve42.co/PatreonDE

Patrons: Adam Foreman, Albert Wenger, Alexander Tamas, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Bruce, Dave Kircher, David Johnston, Evgeny Skvortsov, Farbod Mansorian, Garrett Mueller, Gnare, Greg Scopel, I. H., John H. Austin, Jr., Juan Benet, KeyWestr, Kirill Shore, Kyi, Lee Redden, Marinus Kuivenhoven, Matthias Wrobel, Meekay, Michael Krugman, Orlando Bassotto, Paul Peijzel, Richard Sundvall, Sam Lutfi, Spilmann Reed, TTST, Tj Steyn, Ubiquity Ventures, gpoly, john kiehl, meg noah, wolfee

If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV

CORRECTION: We mistakenly used picture of the portrait artist Henry Tanworth Wells at 23:54. It should be a picture of CTR Wilson. Sorry! Thanks, @manicpixiedreambuoy, for pointing it out.

CORRECTION: The animation at 18:06 shows only the parallel polarization being transmitted, when in reality both parallel and perpendicular polarization light gets transmitted. Perpendicularly polarized light doesn't exhibit a Brester's angle so there's always both reflection and transmission when going from a high index of refraction material to a low index of refraction material.

▀▀▀

References: https://ve42.co/RefsRainbows

▀▀▀
Directed by Pablo Rovetto and Derek Muller
Written by Pablo Rovetto and Derek Muller
Edited by Nick Lear and Trenton
Animated by Mike Radjabov, Ivy Tello, David Szakaly, Emma Wright and Fabio Albertelli
Filmed by Derek Muller
Additional research by Gabe Strong and Geeta Thakur
Produced by Pablo Rovetto, Derek Muller, Emily Zhang, Rob Beasley Spence and Tori Brittain
Thumbnail contributions by Jakub Misiek, Ren Hurley and Peter Sheppard
Additional video/photos supplied by Getty Images, Storyblocks
Music from Epidemic Sound

This is the first Veritasium science video. It addresses one of the most fundamental concepts in science: the idea that all things are made of atoms, tiny particles that are in perpetual motion. They attract each other when a little distance apart and repel when squeezed together.

In this video, I break down the foundational reading skills so you can easily identify correct answers on your teaching reading certification exam. This video will help you with the Praxis Teaching Reading, Pearson Foundations of Reading, and the Texas STR exams. Learn how to distinguish among the skills phonemic awareness, phonological awareness, and phonics.

To purchase my Teaching Reading online course or study guide, click here: https://kathleenjasper.com/col....lections/praxis-teac

___________
Subscribe to my newsletter and get exclusive content:
https://kathleenjasper.com/pag....es/youtube-subscribe

I specialize in helping prospective teachers and educational leaders achieve their goals in certification and career. For more information, go to https://kathleenjasper.com/

Check out my FREE Praxis and SLLA webinars:
https://kathleenjasper.com/pages/free-praxis-and-slla-webinars
____________
Subscribe to my channel - https://www.youtube.com/channe....l/UCgMv3Yml20ijXlxra

Follow me.
TikTok: https://www.tiktok.com/@kathleen_jasper
Facebook: https://www.facebook.com/KathleenJasperEdD
Twitter: https://twitter.com/KathleenJasper
Instagram: https://www.instagram.com/kj_kathleenjasper/

The single principle that underpins all of physics. Head to https://brilliant.org/veritasium to start your free 30-day trial and get 20% off an annual premium subscription.

A massive thank you to Prof. Steven Strogatz for his expertise and enthusiasm. As an exclusive bonus for our Patreon members, we've posted a longer interview with Prof. Strogatz over there: https://www.patreon.com/posts/....principle-of-1160428

A huge thank you to Prof. Haithem Taha, Prof. Anthony Bloch, Dr. Carl-Fredrik Nyberg Brodda, Dr. Sarah Millholland, and Dr. Andrew Mitchell for all their help with finding the story and getting it right.

A special thanks to Dr. Aurèle Adam, Ron Haaksman, Marc Serra Peralta, and everyone at the Delft Makerspace for their help with preparing and performing experiments.

00:00 One rule that replaces all of physics
00:51 The problem of fastest descent
05:09 Fermat's principle
07:17 Bernoulli's solution
10:38 Maupertuis' principle
12:28 Maupertuis attacked and ridiculed
14:01 Euler & Lagrange to the rescue
17:22 The general approach to solving these problems
19:32 Writing the principle into its modern form
23:17 Why the principle works
27:08 Another way to do mechanics
30:19 A “spooky” breakthrough

▀▀▀
Join us on Patreon for early access videos and exclusive bonus content https://ve42.co/PatreonDE

Patrons: Adam Foreman, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Burt Humburg, Chris Harper, Dave Kircher, David Johnston, Evgeny Skvortsov, Garrett Mueller, Gnare, gpoly, I. H., John H. Austin, Jr., john kiehl, Josh Hibschman, Juan Benet, KeyWestr, Kyi, Lee Redden, Marinus Kuivenhoven, Martin, Matthias Wrobel, Max Paladino, Meekay, meg noah, Michael Krugman, Orlando Bassotto, Paul Peijzel, Richard Sundvall, Sam Lutfi, Stephen Wilcox, Tj Steyn, Toni , TTST, Ubiquity Ventures, wolfee

If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV

▀▀▀
Key references:

A fantastic book on the history of the Principle of Least Action: Rojo, A. and Bloch, A. The
Principle of Least Action: History and Physics. - https://ve42.co/Bloch2018
Coopersmith, J. (2017). The lazy universe: an introduction to the principle of least action. Oxford University Press. - https://ve42.co/LazyU
3Blue1Brown. The Brachistochrone, with Steven Strogatz via Youtube - https://ve42.co/Brach3B1B
Vsauce. The Brachistochrone via Youtube - https://ve42.co/BrachV
PBS Space Time. Is ACTION The Most Fundamental Property in Physics? via Youtube - https://ve42.co/PBSAction

Full list of references: https://ve42.co/LeastActionRefs

Images & Video:
Voltaire. (1753). Diatribe du Docteur Akakia. - https://ve42.co/DiatribeAkakia
Philosophical Transactions cover. via Wikimedia Commons - https://ve42.co/PhilTransImage
Kids Fun Science. (Jun 28, 2017). Refraction of Light with a arrow experiment via Youtube - https://ve42.co/RefractionFunSci
Physics with Simon Poliakoff. Refraction demonstration with water and laser via Youtube - https://ve42.co/SimonPoliakoff
Mercury Transit Across Sun. via Nasa.gov - https://ve42.co/MercTransit


▀▀▀
Directed by Casper Mebius
Written by Casper Mebius and Derek Muller
Edited by Trenton Oliver
Animated by Fabio Albertelli, Ivy Tello, Mike Radjabov, Gregor Čavlović, Emma Wright, James Finnemore and David Szakaly
Illustrated by Jakub Misiek, Emma Wright, and Maria Gusakovich
Filmed by Derek Muller and Casper Mebius
Additional research by Gabe Strong, Gregor Čavlović, and Geeta Thakur
Produced by Casper Mebius, Derek Muller, Rob Beasley Spence, Gabe Strong, Gregor Čavlović, and Tori Brittain
Thumbnail contributions by Jakub Misiek, Ren Hurley and Peter Sheppard
Additional video/photos supplied by Getty Images, Storyblocks, and NASA SVS
Music from Epidemic Sound

We’re on PATREON! Join the community: https://www.patreon.com/itsokaytobesmart
↓↓↓ More info and sources below ↓↓↓

Over 200 years ago, scientists were looking at sunlight through a prism when they noticed that part of the rainbow was missing. There were dark lines where there should have been colors. Since then, scientists have unlocked the secrets encoded in these lines, using it to uncover mind-boggling facts about the fundamental nature of our universe and about worlds light-years away.

Want to build your own DIY spectrometer? Mine is a modified version of this one from @exploratorium https://www.exploratorium.edu/....snacks/cd-spectrosco
And here's what you'll need to make one: https://amzn.to/3sbhr7C

References: https://sites.google.com/view/....whysomeoftherainbowi

0:00 Fraunhofer's mystery of missing colors
0:54 Playing with fire
2:11 Puzzle pieces and color codes
3:30 Electrons do the strangest things
5:40 How to make a rainbow analyzer
8:00 Using rainbows to understand the universe
9:57 Life beyond Earth
10:57 Final thoughts

SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub

-----------

High fives to all our Brain Trust Patrons:

Holly, Brett, and Ashe Bullion
Jaap Westera
Millennial Glacier
Mehdi Damou
Barbora Bei
Burt Humburg
dani bowman
David Johnston
Baerbel Winkler
Robert Young
Eric Meer
Dustin
Karen Haskell

Support us on Patreon!
https://patreon.com/itsokaytobesmart

Twitter
http://www.twitter.com/DrJoeHanson
http://www.twitter.com/okaytobesmart

Instagram
http://www.instagram.com/DrJoeHanson
http://www.instagram.com/okaytobesmart

Merch
https://store.dftba.com/collec....tions/its-okay-to-be

Facebook
https://www.facebook.com/itsokaytobesmartpbs/

Join us in World of Tanks now for free and use the code ‘ONCEUPONATANK’ to access the Tiger tank 131 and other cool stuff by clicking the link here: https://tanks.ly/33Q89zl

The MIAS and MORAS mini tanks remain one of the most awkward weapon designs in the history of warfare.

Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory

Copyright: DO NOT translate and re-upload our content on Youtube or other social media.

SIMPLE HISTORY MERCHANDISE

Get the Simple History books on Amazon:

https://www.amazon.com/Daniel-....Turner-%60/e/B00H5TY

T-Shirts

https://teespring.com/stores/s....imple-history-offici

Simple history gives you the facts, simple!

See the book collection here:

Amazon USA

http://www.amazon.com/Daniel-Turner/e/B00H5TYLAE/


Amazon UK
http://www.amazon.co.uk/Daniel....-Turner/e/B00H5TYLAE


https://www.facebook.com/Simpl....e-History-5494376751

https://twitter.com/SimpleHistoryYT


Credit:
Created by Daniel Turner
Script: Dejan Milivojevic
Narrator:
Bryan 'Lazlo' Beauregard



Music Credit:

Crossing the Chasm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

Sources:
Motomitragliatrice blindata d’assalto “MIAS”, Technical features, Ansaldo S.A.
Hills, Andrew. "Ansaldo MIAS/MORAS 1935." Tank Encyclopedia. January 02, 2020.
Antonino Giorgianni. "Ansaldo Mias/Moras." Storia D'Italia. April 20, 2020.

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/cc-sixth-grade-ma

Remember that what you do to one side, you have to do to the other. Will you multiply or divide both sides to dump the fraction, x/a? Let's do it together.

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/equations_beginner/e/linear_equations_1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Watch the next lesson: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/equations_beginner/v/solving-one-step-equations?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Missed the previous lesson?
https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/equations_beginner/v/simple-equations?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Algebra channel:
https://www.youtube.com/channe....l/UCYZrCV8PNENpJt36V
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Sean Reardon, a professor of education and sociology at Stanford University, discusses his recent study for which he and his colleagues built a data-bank archive of every test score from every elementary and middle school student in the United States over the last five years. Reardon explains that at the core of the study, which includes 215 million student test scores, is the question: Can we fix educational equity by building better school systems alone?

More on this topic is available here: http://www.edweek.org/ew/artic....les/2017/05/31/our-s ____________________

Want more stories about schools across the nation, including the latest news and unique perspectives on education issues? Visit www.edweek.org.

About Education Week:
Education Week is America’s most trusted source of independent K-12 education news, analysis, and opinion. Our work serves to raise the level of understanding and discourse about education among school and district leaders, policymakers, researchers, teachers, and the public. Published by the nonprofit organization Editorial Projects in Education, Education Week has been providing award-winning coverage of the field for over 35 years.

Follow Education Week:
- Subscribe to our Channel: http://www.youtube.com/subscri....ption_center?add_use
- On Facebook at https://www.facebook.com/edweek/
- On Twitter at https://twitter.com/educationweek/
- On LinkedIn at https://www.linkedin.com/company/education-week

To license video footage from Editorial Projects in Education please contact the Education Week Library at library@epe.org.