סרטונים מובילים | TeacherFlix | Free Classroom Videos & Ready-to-Use Lesson Resources

בית
מאמרים

סרטונים מובילים

כל הזמן

היום

השבוע

החודש

השנה

Alexander Graham Bell for Kids | Learn all about this famous inventor | Who invented the phone? Teacherflix 10 צפיות • לִפנֵי 2 שנים

Come and learn all about Alexander Graham Bell for Kids in this this fun historical video. Throughout this video we highlight some important aspects of Alexander Graham Bell's life including his childhood, early adulthood, his passion for helping the deaf, and many of his other famous inventions. There may be some skepticism around who invented the phone but it is widely attributed to Bell and we learn how it all came to be!

Do you know what the first words ever spoken in a telephone were? Well...you'll find out in the video! Alexander Graham Bell went on to invent many more things including the metal detector, audiometer and many other things we still use today! He also founded Bell Telephone company or what we now call AT&T!

He truly was a fascinating person and an amazing inventor. The world is a more advanced place to live in because of the contributions of Alexander Graham Bell. So what is your favorite invention of Bell's?

If you'd like to learn even more, we invite you to download our complete lesson plan all about Alexander Graham Bell's life and inventions. The 11 page PDF lesson plan is full of worksheets, content, teacher instructions and activities. You can download here: https://learnbright.org/lesson....s/social-studies/ale

Thank you for watching and learning with us! We’re constantly releasing new content and videos so click that “Subscribe” button and you’ll notified.

Find and Follow Us Online:
Facebook: https://www.facebook.com/LearnBright/
Instagram: https://instagram.com/LearnBrightEducation
Pinterest: https://pinterest.com/LearnBrightEducation
YouTube: https://www.youtube.com/LearnBright
Website: https://learnbright.org/

*Teachers and Parents! Did you know? In addition to these great videos, we have also created a library of high quality and engaging lessons for your elementary aged student(s). Visit us, sign up for a free account, and instantly you'll have access to thousands of lesson plans, learning materials, teaching instructions, activities, and assignments that your kids will really enjoy! We hope to see you soon!

Browse our entire collection of Social Studies lesson plans: https://learnbright.org/lessons/?filter_subject=social-studies

#AlexanderGrahamBell

The Man Who Killed Millions and Saved Billions (Clean Version) Teacherflix 5 צפיות • לִפנֵי 7 חודשים

YES, THIS IS A REUPLOAD. The original was age-restricted and demonetized. To support the channel directly, you can buy Snatoms: https://ve42.co/snatoms1 https://ve42.co/amzn or support on Patreon: https://ve42.co/p

Fritz Haber is the scientist who arguably most transformed the world.
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
A huge thanks to Dan Charles for writing a fantastic biography of Fritz Haber, for taking the time to talk to us about it, and providing valuable feedback. This video would not be what it is without his contributions. http://site.danielcharles.us https://ve42.co/Charles

Thanks to Tom de Prinse from Explosions and Fire for helping us with the chemistry of explosives. If you like explosions and/or fire, you will love his channel. https://www.youtube.com/c/ExplosionsFire2

Thanks to Michael Kuiper of CSIRO for the animation of the composition of air - https://www.youtube.com/watch?v=j9JvX58aRfg

Special thanks to Sonya Pemberton, Karl Kruszelnicki, Mary Dobbie, Olivia McRae, and the patreon supporters for giving us feedback on the earlier version of this video.

▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
References:

The primary reference used is Vaclav Smil’s excellent book, Enriching The Earth –
Smil, V. (2004). Enriching the earth: Fritz Haber, Carl Bosch, and the transformation of world food production. MIT press. – https://ve42.co/Smil

Mastermind: The Rise and Fall of Fritz Haber, the Nobel Laureate Who Launched the Age of Chemical Warfare, by Dan Charles – https://ve42.co/Charles

Stoltzenberg, D. (2004). Fritz Haber: Chemist, Nobel Laureate, German, Jew. Chemical Heritage Foundation. – https://ve42.co/Stoltzenberg

Postgate, J. R. (1982). The fundamentals of nitrogen fixation. CUP Archive. – https://ve42.co/postgate

Miles, A. G. (1992). Biological nitrogen fixation. – https://ve42.co/Miles

Friedrich, B., & Hoffmann, D. (2017). Clara Immerwahr: A life in the shadow of Fritz Haber. In One Hundred Years of Chemical Warfare: Research, Deployment, Consequences(pp. 45-67). Springer, Cham. – https://ve42.co/Friedrich2017

Da Silva, G. (2020). What is ammonium nitrate, the chemical that exploded in Beirut. Sci Am, 5. – https://ve42.co/Silva

Rodrigues, P., & Micael, J. (2021). The importance of guano birds to the Inca Empire and the first conservation measures implemented by humans. – https://ve42.co/rodrigues

Allison, F. E. (1957). Nitrogen and soil fertility. Soil, the, 85-94. – https://ve42.co/Allison

Crookes, W. (1898). Address of the President before the British Association for the Advancement of Science, Bristol, 1898. Science, 8(200), 561-575. – https://ve42.co/Crookes

▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
Special thanks to Patreon supporters: RayJ Johnson, Brian Busbee, Jerome Barakos M.D., Amadeo Bee, Julian Lee, Inconcision, TTST, Balkrishna Heroor, Chris LaClair, Avi Yashchin, John H. Austin, Jr., OnlineBookClub.org, Matthew Gonzalez, Eric Sexton, john kiehl, Diffbot, Gnare, Dave Kircher, Burt Humburg, Blake Byers, Dumky, Evgeny Skvortsov, Meekay, Bill Linder, Paul Peijzel, Josh Hibschman, Timothy O’Brien, Mac Malkawi, Michael Schneider, jim buckmaster, Juan Benet, Ruslan Khroma, Robert Blum, Richard Sundvall, Lee Redden, Vincent, Stephen Wilcox, Marinus Kuivenhoven, Michael Krugman, Cy 'kkm' K'Nelson, Sam Lutfi, Ron Neal

▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
Written by Petr Lebedev, Derek Muller, Felicity Nelson and Kovi Rose
Edited by Trenton Oliver
Animation by Jakub Mistek, Fabio Albertelli, Ivy Tello, Alex Drakoulis, Nils Ramses Kullack, and Charlie Davies
SFX by Shaun Clifford
Filmed by Petr Lebedev, Derek Muller and Raquel Nuno
Photo of nitrogen deficiency in rice from https://ve42.co/rice
Additional video/photos supplied by Getty Images
Music from Epidemic Sound: https://ve42.co/music

Universal Basic Income Explained – Free Money for Everybody? UBI Teacherflix 4 צפיות • לִפנֵי 7 חודשים

What is UBI? How would free money change our lives.

OUR CHANNELS
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
German Channel: https://kgs.link/youtubeDE
Spanish Channel: https://kgs.link/youtubeES

HOW CAN YOU SUPPORT US?
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
This is how we make our living and it would be a pleasure if you support us!

Get Merch designed with ❤ from https://kgs.link/shop
Join the Patreon Bird Army 🐧 https://kgs.link/patreon

DISCUSSIONS & SOCIAL MEDIA
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
Reddit: https://kgs.link/reddit
Instagram: https://kgs.link/instagram
Twitter: https://kgs.link/twitter
Facebook: https://kgs.link/facebook
Discord: https://kgs.link/discord
Newsletter: https://kgs.link/newsletter

OUR VOICE
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
The Kurzgesagt voice is from
Steve Taylor: https://kgs.link/youtube-voice

OUR MUSIC ♬♪
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
700+ minutes of Kurzgesagt Soundtracks by Epic Mountain:

Spotify: https://kgs.link/music-spotify
Soundcloud: https://kgs.link/music-soundcloud
Bandcamp: https://kgs.link/music-bandcamp
Youtube: https://kgs.link/music-youtube
Facebook: https://kgs.link/music-facebook

The Soundtrack of this video:

Soundcloud: http://bit.ly/2BHihcO
Bandcamp: http://bit.ly/2AY8lPf
Facebook: http://bit.ly/2qW6bY4

A few sources:

Cash Transfers and Temptation Goods
http://bit.ly/2gfkwsN

Debunking the Stereotype of the Lazy Welfare Recipient: Evidence from Cash Transfer Programs Worldwide
http://bit.ly/1lFeO5Y

The Poverty Trap
http://bit.ly/2iCv9cK

The short-term impact of unconditional cash transfers to the poor: experimental evidence from Kenya
http://bit.ly/2ixSbEn

Opinion: Our Broken Economy, in One Simple Chart
http://nyti.ms/2vzE1be

Modeling the Macroeconomic Effects of a Universal Basic Income
http://bit.ly/2xLWUFi

On the Economics of a Universal Basic Income
http://bit.ly/2BdHoaX

What Would Happen If We Just Gave People Money?
http://53eig.ht/230Td6X

Cash Transfers and Temptation Goods –
A Review of Global Evidence
http://bit.ly/2cXUTyY

Cash transfers: what does the evidence say? A rigorous review of impacts and the role of design and implementation features
http://bit.ly/2av62Ya

Cash as Capital
http://bit.ly/2rGvlgZ

🐦🐧🐤 PATREON BIRD ARMY 🐤🐧🐦
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
Many Thanks to our wonderful Patreons from http://kgs.link/patreon who support us every month and made this video possible:

Kelly-Anne B, Kevin Perot, Ehsan Kia, Larry Peterson, Verteiron, Kristofer Sokk, Lily Lau, Fabian Keller, Hrvoje Stojanović, Chris K, Rebecca Lawson, Jonah Larsen, Tombfyre, Carlos Fuentealba, Logan Spalding, Richard Williams, Sylvain Gibouret, Paul Cowan, François Agier, Tristin, Matthias Monnereau, Qiiii Wang, Hendrik Ewe, Jenny Wang, Steve Root, Erickson Dias, Daniel Dod, Peggy Snow, fxenergy, Stephan Wölcher, Christian Strømnes, Michael, Dave, Anders Mærøe, Peter Sodke, Mathis Rehfeld, Obedient Gamer, Mersija Maglajlic, Christian Kleinferchner, Luke Stowers, Macrieum, Joanna Iwańska, Eli Mahler, Kevin Stamps, K., Mike Danielson, Harethh aljagbir, Panayot Todorov, TechyTF77 , Jacob Hilliard, Paul Flynn, Raymond Carter, Luke Welton, Ryan Kratt, robert oseveno, Hugo Chuang, Seggev Shoresh, Mechanically Cryptic, Niklas Widmann, Moshe Simantov, Sebastian Link, Leezdorfer, Andrei Robu, Karla Brilman, Jason Lopez, n0mir3k, Daniel Mardale

Help us caption & translate this video!

http://www.youtube.com/timedtext_cs_panel?c=UCsXVk37bltHxD1rDPwtNM8Q&tab=2

Universal Basic Income Explained – Free Money for Everybody? UBI

My Doll Song | RV AppStudios Nursery Rhymes & Songs For Babies Teacherflix 5 צפיות • לִפנֵי 6 חודשים

MCAT General Chemistry Lectures Review Prep Part 2 – Equations & Practice Questions Teacherflix 9 צפיות • לִפנֵי 2 שנים

This mcat review prep video tutorial focuses on the general chemistry section of the mcat. This is the part 2 version and it contains plenty of notes, concepts, equations, formulas, example problems and practice questions. Here is a list of topics included in this video:

Full Video: https://vimeo.com/ondemand/mcatcoursereview

1. State Functions – Enthalpy, Entropy, and Free Energy
2. Internal Energy of a System – Heat Transfer and Work
3. System vs Surroundings – Endothermic and Exothermic Processes
4. Pressure, Volume and Work – Gas Expansion vs Compression
5. Temperature Change vs Phase Change – Heat Transfer Problems
6. Heat of Vaporization and Enthalpy of Fusion
7. Freezing, Melting, Vaporization, Condensation, Sublimation and Deposition
8. Heats of Formation, Enthalpy of Reaction, Hess Law, Calorimetry, and Bond Dissociation Energy
9. Quantum Mechanics – n, l, ml, and ms. S, P, D, F orbitals. Energy Levels and Sublevels.
10. Ground State Electron Configuration vs Noble Gas Notation With Orbital Diagrams
12. Radio Waves, Microwaves, Infrared, Visible Light, Ultraviolet, X-Rays, and Gamma Rays
13. Electromagnetic Radiation – Frequency, Wavelength, Energy of a Photon, and Speed of Light
14. Ionization Energy, Electron Affinity, Atomic Size, Ionic Radii, Metallic Character, & Electronegativity
15. Lewis Structures, Hybridization, Molecular Geometry, Bond Angle, Polar and Nonpolar
16. Formal Charge Calculations, Bond Order, Sigma and Pi Bonds, Bond Length vs Strength
17. Intermolecular Forces – Ion Dipole, Hydrogen Bonds, Dipole Dipole and London Dispersion Forces
18. Boiling Point vs Vapor Pressure – Molar Mass, Polarizability, and Temporary Induced Dipoles
19. Classius Clayperon Equation
20. Vapor Pressure and Temperature, Boiling Point vs Elevation
21. Molality, Molarity, Mass %, and Density Calculations – Solute, Solvent, and Solutions
22. Henry’s Law – Gas Solubility vs Pressure vs Temperature
23. Colligative Properties – Boiling Point Elevation, Freezing Point Depression
24. Vapor Pressure Lowering – Raoult’s Law and Osmotic Pressure
25. Phase Diagrams – Critical Point, Triple Point, Normal Melting Point, and Normal Boiling Point