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Since the days of Ancient Greece, philosophers and scientists have been wondering: What is space? Is the absence of things… a thing? These questions continued to fascinate physicists in the modern era, leading Isaac Newton, Ernst Mach, and Albert Einstein to wonder about the true nature of the fabric of the cosmos. The search for an answer led them to some of the greatest theories in physics. This week, we ask if space and time are really real, and how they come together to make “spacetime”!

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READ MORE:
“The Fabric of the Cosmos” by Brian Greene http://amzn.to/2tF9fZO (Public library: http://www.worldcat.org/oclc/681349969)

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What's the tallest mountain on Earth? It might seem like an easy question to answer, but in reality it's one that brings up more NEW questions than answers. It turns out that the way we measure mountains rests on a lot of approximations, assumptions, and averages. And when you dig into those, there's several contenders for the tallest mountain, each with their own good case for the title. So, which mountain do YOU think should take the throne?

References: https://sites.google.com/view/....references-tallest-m

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CXC Math Past Paper Playlist
https://www.youtube.com/watch?v=j9tO0NTqrds&list=PL8H4Fn9bk8JpNXPoRXxLkWQnOma84zpvx

CXC Past Paper Math Questions - Rearranging Formulas (Transposition)
https://www.youtube.com/watch?v=j9tO0NTqrds&t=4s

CXC Past Paper Math Questions - Solving Linear Equations
https://www.youtube.com/watch?v=gS7qBtkKq5E&t=343s

CXC Past Paper Math Questions - Consumer Arithmetic (Part 3 of 3)
https://www.youtube.com/watch?v=iNRrH87azd0&t=19s

CXC Past Paper Math Questions - Fractions
https://www.youtube.com/watch?v=bYCGQ8dqXoA&t=2097s

CXC Past Paper Math Questions - Basic Computation
https://www.youtube.com/watch?v=gunrbiAfI0M

For More Math CSEC/CXC Videos visit the link below:
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Click this link to learn fraction from scratch (The Basics of Fractions)
https://www.youtube.com/watch?v=98GevQYCUnI&t=161s

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Secondary/High School Level Mathematics - We look at CXC/CSEC topics and past paper questions.

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Can trees really save us from climate change? For eons, nature has relied on photosynthesis as a big way to keep carbon dioxide levels from getting out of control. But as we have put more carbon into the air, we’ve also cut down many of the forests we need to suck that carbon up. So big tree-planting initiatives like #TeamTrees to the rescue, right? Actually, we need to think bigger. Here’s three ways trees really can help us solve climate change, from a guy who wants to plant a TRILLION trees, to how we might save the forests we’ve got, to scientists hacking biology to make trees even better.

References: https://sites.google.com/view/....3waystreescansavethe

Aspect Science: Team Trees Explained https://youtu.be/SLHCA-hHx4Y

Special thanks to Felix Finkbeiner
https://www.plant-for-the-planet.org/en/home

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Introduction to the power rule for derivatives. The power rule is

d/dx[x^n]=n*x^(n-1)


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0:00 Introduction
0:40 Example 1
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Educational video for children to learn what the Greenhouse Effect is and how it works. The Earth is surrounded by the atmosphere, a thin gaseous layer which allows part of the solar radiation to penetrate. To do that, this layer contains gases called "greenhouse effect gases", whose mission is to absorb part of that, and maintain the temperature of the planet. One of the main greenhouse effect gases is CO2, also known as carbon dioxide. In this video, children will find out that the increase of these gases is harmful for the Earth and they will look at several examples related to the cause of this increase like the Industrial Revolution, traffic, electricity consumption, factory production, massive farming or wildfires. At the end of the video, children will be able to explore ways to prevent this situation from getting worse like recycling, using renewable energies, electric transportation or reducing the use of plastic containers.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

We only upload our own content, designed by educators so that children smile and learn while watching a video.

All of our content reinforces educational values, encouraging the use of multiple intelligences and language learning.

If you like our videos, download Smile and Learn now. You’ll discover more than 5.000 activities for children aged 3 to 12 yeards, all designed by educators. We have 250 games and interactive stories and over 280 videos in five languages: English, Spanish, Portuguese, Italian and French. Try a month for free and start the adventure!

🍎 Enjoy our growing library of math videos at https://www.numberock.com 🍎

Thank you for watching Numberock's Fractions Song Compilation.

This chemistry video tutorial explains how to calculate the molar mass of a compound. It contains plenty of examples and practice problems.

Introduction to Moles: https://www.youtube.com/watch?v=EowJsC7phzw

How To Calculate The Molar Mass:
https://www.youtube.com/watch?v=c_zHROisdP4

How To Convert Grams to Moles:
https://www.youtube.com/watch?v=irYPta9G_sw

How To Convert Moles to Grams:
https://www.youtube.com/watch?v=Bj3fr5pEn7U

Moles to Atoms Conversion:
https://www.youtube.com/watch?v=mpHQZ1PrkUI

Grams to Molecules Conversion:
https://www.youtube.com/watch?v=Ch16s4kYH1Q

_________________________________
Grams to Atoms:
https://www.youtube.com/watch?v=RFCtPjZ4Vzk

Moles, Atoms, & Grams Conversions:
https://www.youtube.com/watch?v=i1EPgeu_fJ8

How To Balance Chemical Equations:
https://www.youtube.com/watch?v=iUARzSxcKzk

Stoichiometry - Basic Introduction:
https://www.youtube.com/watch?v=7Cfq0ilw7ps

Avogadro's Number:
https://www.youtube.com/watch?v=74-X94OP2XI

_________________________________
Limiting Reactant Problems:
https://www.youtube.com/watch?v=IWtkhAv4RTo

Excess Reactant Problems:
https://www.youtube.com/watch?v=-7UloVZFG00

Theoretical & Percent Yield:
https://www.youtube.com/watch?v=hhEfqa_x7RQ

Percent Yield - More Examples:
https://www.youtube.com/watch?v=w1njGAkc8og

Percent Error:
https://www.youtube.com/watch?v=JbEo46uV6d4

_________________________________
Percent Composition By Mass:
https://www.youtube.com/watch?v=bGmbyztdCHE

Empirical Formula Problems:
https://www.youtube.com/watch?v=JeSSucG-CVw

Empirical Formula - Hydrated Compounds:
https://www.youtube.com/watch?v=gl_QAO5y9Ig

Combustion Analysis:
https://www.youtube.com/watch?v=uvR7zNJ1KoI

Stoichiometry Practice Test:
https://www.youtube.com/watch?v=mP2Yg8alyR0

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

Full-Length Videos and Worksheets:
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Educational video for kids to discover invertebrate animals, like arthropods, worms, cnidarians, mollusks, sponges, echinoderms... Among the invertebrate animals, we draw attention to the frog, the jellyfish, the starfish, the earthworm, the snail, the silkworms and lots more.

This is an introductory video to this animal group. Recommended for primary school children.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

We only upload our own content, designed by educators so that children smile and learn while watching a video.

All of our content reinforces educational values, encouraging the use of multiple intelligences and language learning.

If you like our videos, download “The Smart Library” now. You’ll discover more than 70 interactive games and stories for children designed by educators. The stories are based on VALUES like friendship, respect, and generosity, and our games cover all of the MULTIPLE INTELLIGENCES. All our content is in SPANISH, ENGLISH, FRENCH, ITALIAN and PORTUGUESE.

Anthropic just made Claude's brain readable in plain English.

Not a bigger model. A microscope for what's actually happening inside.

Natural Language Autoencoders translate Claude's internal activations into sentences. Hidden motives. Goal-seeking. Moments where the model knows it's being tested.

Auditors went from catching 3% of hidden behavior to 15% — five times better.

In India, every fintech and health app shipping LLM features flies blind on alignment. No red team. No ₹5-crore audit budget.

For the first time, somebody can read what your AI is actually thinking — before it ships.

Follow @chakit.ai for daily breakdowns.


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#claudeai

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This video walks you through how to add fractions when they both have different denominators.

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Improved math is a channel created to provide additional instruction on essential math concepts. I’m passionate about math and I know first-hand how important math concepts are in the real world.

Teachers, parents, guardians, homeschoolers, and students can use these videos to help reinforce math skills. These math videos are designed to help teach yourself math or provide self-study math tools to assist when additional instruction is needed. Teaching math and learning math has changed the way many students learn in this virtual environment. Having on-demand math videos can provide math tutoring needed when children are not able to get help from their teachers after school hours or when trying to do math at home.

The library of math tutorials that I create can also be used as supplemental instructional material for homeschool math. Each full-length video comes with a subsequent knowledge check or math practice problems which serve as a virtual math topic worksheet to test your understanding of each skill. These videos can be paused to work out the problems on your own, then unpaused to check your answers. All of these videos can be found under the Knowledge Check playlist.

I also have a library of shorter videos (less than 1 minute in length - shorts) that are quick math tips and tricks on basic math topics. Some of these short math help videos include problems that you can work on yourself and submit your answers in the comments. They are all listed under my Math Tips and Tricks playlist.

Improved math is creating more videos every day to cover topics from 4th grade, 5th grade, 6th grade, and 7th-grade math. The videos focus on fractions, basic math operations, geometry, and ratios but more topics are being added all the time. If there is a specific topic you would like to see covered, drop me a comment in one of my videos and let me know!

Free math help videos will be posted every Thursday and Friday. For additional math resources, check out my math help website at improvedmath.com where I post math worksheets and answers along with additional context on math basics.



Thanks for watching my channel.

This calculus video tutorial provides a basic introduction into hyperbolic trig functions such as sinh(x), cosh(x), and tanh(x).

Hyperbolic Trig Functions: https://www.youtube.com/watch?v=PJRSu0Vf0r0

Hyperbolic Trig Graphs:
https://www.youtube.com/watch?v=w_UEjfADQQc

Evaluating Hyperbolic Functions:
https://www.youtube.com/watch?v=va09U91xHxA

Hyperbolic Trig Identities:
https://www.youtube.com/watch?v=m9nwdn55Z2w

Verifying Hyperbolic Identities:
https://www.youtube.com/watch?v=fb4VwLL9Liw

Derivatives - Hyperbolic Functions:
https://www.youtube.com/watch?v=Q6-QZxUDfE0

__________________________________
Integral of Hyperbolic Functions:
https://www.youtube.com/watch?v=2Mz_KYAyUo4

Inverse Hyperbolic Functions:
https://www.youtube.com/watch?v=lNIVVYRmbc4

Graphs of Inverse H. Functions:
https://www.youtube.com/watch?v=fT96bbivGk8

Limits of Hyperbolic Functions:
https://www.youtube.com/watch?v=bVhcT2-QMEc

Derivatives of Inverse H. Functions:
https://www.youtube.com/watch?v=NQGiOuohNqI

___________________________________
Calculus 1 - Introduction to Limits:
https://www.youtube.com/watch?v=YNstP0ESndU

Derivatives - Fast Review:
https://www.youtube.com/watch?v=5yfh5cf4-0w

Introduction to Related Rates:
https://www.youtube.com/watch?v=I9mVUo-bhM8

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

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

Sing-along phonics song for kindergarten and babies that help teach the ABC. 🤩 Learn letter sounds, the English alphabet, and more, all with easy and fun phonics song and nursery rhymes for babies and children! 📌 Join us for our phonics song for kids with Lucas and Ruby by RV AppStudios.

Help your preschool or kindergarten age kid learn the ABCs the easy way with these adorable, safe, and captivating phonics song. 🌟 Some children struggle learning the Phonics sounds of alphabets, but with the right lessons, it’s easy for kids of all ages to pick up basic letter sounds and words. 📖

This 4K ultra HD video teaches children their ABC and certain phonics sounds of alphabets a to z with simple songs and nursery rhymes. ✔️ It stars two of our lovable mascots, as well: Lucas 🦁 and Ruby 🐰! Bring your kids into a world of colorful visuals and bright, cheery songs, all created with early education in mind. 🥇 It’s an easy way to learn the ABC phonic song with two words and the English alphabet, so why not start today?

🎯 RV AppStudios educational branch RV Kids is dedicated to creating free kids songs and nursery rhymes! 🔊 Be sure to LIKE and SUBSCRIBE for more great sing-along songs! 🔥

#Phonics #ABCD #NurseryRhymes

Pass the GED MATH Test No Calculator Section with EASE. This video helps you prepare for this section.

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Over 200+ videos with quizzes and answer site, covers pre-algebra, algebra 1 and algebra 2.

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Our easy-to-follow video guide on translating words into algebraic expressions!

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Download Expressions
https://ultimate-algebra.com/t....ranslating-words-int

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Get Our Premium Course -- ultimate-algebra.com
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#AlgebraBasics #AlgebraicExpressions #MathTutorial #LearnAlgebra #MathProblems #WordToExpression #MathHomeworkHelp #StudyMath #MathEducation #AlgebraForBeginners

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The name, Eagle’s Nest, was given to the structure by a French
ambassador named André François-Poncet, who recalled later of his time at the chalet as enlightening into the Nazi party and was startled at how quickly Hitler had come to power. The name stuck and many now remember kehlsteinhaus as Eagle’s Nest. It is also remembered for primarily being a place of reception and even a few weddings. Hitler once remarked that it offered him an excellent opportunity to amaze visitors with German engineering and entertain the most important guests.


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

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

Chris Kane
https://vocalforge.com/
Script: Luke Ursone

“Adolf Hitler and the Kehlsteinhaus.” Das Kehlsteinhaus, May 12, 2016.
Institute, Wyman. “Special Feature: Hitler in ‘Homes & Gardens.’” The David S. Wyman Institute for Holocaust Studies, April 2, 2020.
Kershaw, Ian. Hitler: 1889-1936: Hubris. New York: Norton, 2000.
Steves, Rick. “The Bavarian Background of Hitler's Eagle's Nest.” Rick Steves, June 20, 2022.
Wilson, James. Hitler's Alpine Headquarters. Pen and Sword, 2022.

Today we’re learning about Marsha P. Johnson and the Stonewall rebellion. Serving as a pivotal moment in the modern Gay Rights Movement, Stonewall began on June 28th, 1969, and lasted six days in New York City’s Greenwich Village. And even though the rebellion lasted less than a week, the reverberations lasted for generations. Out of Stonewall emerged the establishment of one of the first gay pride parades, increased activism and organizing on behalf of gay people, and greater attention paid to the rights and needs of LGBTQ+ communities.

Clint's book, How the Word is Passed is available now! https://bookshop.org/books/how....-the-word-is-passed-

Sources and References

David Carter, Stonewall: The Riots That Sparked the Gay Revolution (New York: St. Martin’s, 2004).
Martin Duberman, Stonewall: The Definitive Story of the LGBTQ Rights Uprising that Changed America (New York City: Plume, 2019).

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Justin Snyder, April Frazier, Dave Freeman, Hasan Jamal, DL Singfield, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel Stevens, Michael Wang, Stacey Gillespie (Stacey J), Burt Humburg, Allyson Martin, Aziz Y, Shanta, DAVID MORTON HUDSON, Perry Joyce, Pineapples of Solidarity, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Breanna Bosso, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Jennifer Dineen, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Jirat, Katie Dean, Avi Yashchin, NileMatotle, Wai Jack Sin, Ian Dundore, Justin, Mark, Caleb Weeks
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Explore Tankfest 2021 HERE: https://tanks.ly/3nuodRh


During World War Two, the German Army used over 70 different types of armored fighting vehicles.
Some of them gained iconic status and were produced in their thousands.
Others never got beyond the gates of the testing grounds.
There were marvelous examples of technical engineering among the prototype vehicles, and there were those that were just downright bizarre .
One of these was the Kugelpanzer, a spherical tank produced as a ‘one off’.

Become a Simple History member: https://www.youtube.com/simplehistory/join
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Copyright: DO NOT translate and re-upload our content on Youtube or other social media.

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

Chris Kane
https://vocalforge.com/

Animation: Maja Djokic

Te enseño como descargar e instalar GeoGebra en tu Computadora

Tutorial completo

Pagina de GeoGebra
https://geogebra.org/

Link para descargar directo
https://www.geogebra.org/download

European exploration had a lot of side effects. When the Old World and the New World began to interact, people, wealth, food, animals, and disease began to flow in both directions. In the New World, countless millions were killed by smallpox, measles, and other Old World diseases. Old World animals changed life in the New World irrevocably, and the extraction of wealth and resources from the Americas ultimately contributed to the development of the Atlantic Slave Trade. So, it was an exchange with a lot of downside, especially for non-Europeans.

SOURCES
Pringle, Heather. “Sugar Masters in the New World,” Smithsonian Magazine, January 12, 2010,
Smithsonian.com https://www.smithsonianmag.com..../history/sugar-maste
Seijas, Tatiana. Asian Slaves in Colonial Mexico: From Chos to Indians. New York: Cambridge University Press, 2014.
https://www.sciencemag.org/new....s/2009/10/pre-columb
Smith, Bonnie G. Modern Empires: A Reader. New York: Oxford University Press, 2017.
Smith, Bonnie G. Women in World History from 1450. London: Bloomsbury, 2019.
Spielvogel, Jackson J. Western Civilization. 7th ed. Belmont, CA: Thomson Wadsworth, 2009.

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