At five am on the 3rd of October 1935 Italian forces crossed into Abyssinia, modern day Ethiopia, signalling the start of the Second Italian-Abyssinian War.
The war’s outcome would not only change the face of Africa but the political rifts it caused between the fascist nations and the democratic nations would contribute to the beginning of the most devastating conflict the human race has ever known, the Second World War.


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Credit:
Created by Daniel Turner

Narrator:

Chris Kane
https://vocalforge.com/

Music Credit:

'Arid Foothills- The Dark Contenent'
' 'All This - Scoring Action '
by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/r....oyalty-free/index.ht
Artist: http://incompetech.com/

Sources

https://pastebin.com/atgHfNad

Introduction to molecular and empirical formulas. Calculating molecular mass.
More free lessons at: http://www.khanacademy.org/video?v=gfBcM3uvWfs

Read and Quiz
This reading lesson is specially created for kids. It will help kids to enhance their reading ability and comprehension.

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

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

Showing that the limit of sin(x)/x as x approaches 0 is equal to 1. If you find this fact confusing, you've reached the right place!

Watch the next lesson: https://www.khanacademy.org/math/ap-calculus-ab/ab-derivative-rules/ab-derivtive-rules-opt-vids/v/1-cosx-over-x-as-x-approaches-0?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusAB

Missed the previous lesson? https://www.khanacademy.org/math/ap-calculus-ab/ab-derivative-rules/ab-derivtive-rules-opt-vids/v/proof-d-dx-sqrt-x?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusAB

AP Calculus AB on Khan Academy: Bill Scott uses Khan Academy to teach AP Calculus at Phillips Academy in Andover, Massachusetts, and heÕs part of the teaching team that helped develop Khan AcademyÕs AP lessons. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

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10th Grade Vocabulary words in English defined. Expand your vocabulary with Mr. Pencil your host for these homeschool and public classroom learning lessons. 10th Class English vocabulary Part 1, English Vocabulary words with meaning.

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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/chemistry/peri

Correcting a mistake and learning a bit about ion size. Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/sc....ience/chemistry/peri

Missed the previous lesson? https://www.khanacademy.org/sc....ience/chemistry/peri

Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.

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

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This calculus video provides a basic introduction into the derivatives of inverse trigonometric functions. It explains how to find the derivative of arcsin, arccos, arctan, and arcsec using simple formulas.

Derivatives - Fast Review: https://www.youtube.com/watch?v=5yfh5cf4-0w&t=1s

Derivatives - The Product Rule - f*g:
https://www.youtube.com/watch?v=17X5g9QArTc

Derivatives - The Quotient Rule:
https://www.youtube.com/watch?v=8jVDEcQ0wXk

Derivatives - The Chain Rule:
https://www.youtube.com/watch?v=HaHsqDjWMLU

Derivatives - Composite Functions:
https://www.youtube.com/watch?v=vNXjMTv4vHs

__________________________________
Implicit Differentiation:
https://www.youtube.com/watch?v=xbviQHhU1rA

Derivatives of Inverse Trig Functions:
https://www.youtube.com/watch?v=KbYW9FDm-Zk

Derivatives of Exponential Functions:
https://www.youtube.com/watch?v=yg_497u6JnA

Derivatives of Logarithmic Functions:
https://www.youtube.com/watch?v=Dp9sgIvaKPk

Logarithmic Differentiation:
https://www.youtube.com/watch?v=9z1Dz60mWcQ

___________________________________
Derivatives - Using Logarithms:
https://www.youtube.com/watch?v=VnB59SrT0PY

Derivatives of Inverse Functions:
https://www.youtube.com/watch?v=Hw6ltuCEtuU

Derivatives - Differentiation Rules:
https://www.youtube.com/watch?v=IvLpN1G1Ncg

Derivatives - Function Notations:
https://www.youtube.com/watch?v=7BK_mmYckmI

Derivatives - The Reciprocal Rule:
https://www.youtube.com/watch?v=dsqD5zg9hLY

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

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

It talks about how to use generative AI in the educational sector for creating interactive quizzes, personalized learning activities, and simplified explanations of complex topics, using episode 9 of the Mastering Prompts: Crafting AI's Creative Genius series as a reference @GenAIExplainedSimply

Thousands of parents and educators are turning to the kids’ learning app that makes real learning truly fun. Try Kids Academy with
3-day FREE TRIAL! https://bit.ly/2GuGyL2

Communities for Kids - Types of Communities | Social Studies for Kids | Kids Academy

What are social communities? A social community is regarded as a group of people who live and work together in a particular area.

People belonging to a specific community also go to the same schools, offices, and hospitals. They are dedicated to helping each other in the time of need. They help them in solving their problems.

Families and friends are the most important part of social communities. We live with our family and we go out with our friends, and do the same type of things. Your neighborhood makes a community, and you will find a number of schools, libraries, offices, shops, and stores all in one place.

As a community, we should be aware of our role as community members, and we should become good citizens to play our role in the community.


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This physics video tutorial explains how to solve any circuit problem with capacitors in series and parallel combinations. This video explains how to calculate the electric charge and voltage on every capacitor in a series and parallel circuit. In a series circuit, the capacitors have the same charge and the voltages are additive following kirchoff's voltage law. In a parallel circuit, all of the capacitors have the same voltage but their charges are additive. This tutorial contains plenty of examples and practice problems.

Capacitors - Basic Introduction:
https://www.youtube.com/watch?v=BimpNou0orc

How To Solve DC Circuits:
https://www.youtube.com/watch?v=eFlJy0cPbsY

KCL and KVL Circuit Analysis:
https://www.youtube.com/watch?v=2Zu3ppq3n8I

Equivalent Capacitance:
https://www.youtube.com/watch?v=PPhSmZ6w9WY

Capacitors In Series and Parallel:
https://www.youtube.com/watch?v=zaT4JorVUz0

__________________________
More Example Problems:
https://www.youtube.com/watch?v=a-gPuw6JsxQ

Electron Flow In Capacitors:
https://www.youtube.com/watch?v=iQZknlJjaj4

RC Circuit Physics Problems:
https://www.youtube.com/watch?v=PLQrPqYlPmI

Voltmeters and Ammeters:
https://www.youtube.com/watch?v=NLPSHwDUYrY

Wheatstone Bridge Circuit:
https://www.youtube.com/watch?v=jFvVtB10B1I

______________________________
Basic Electronics For Beginners:
https://www.youtube.com/watch?v=uXr4lXYjXuU

Magnetic Force on a Wire:
https://www.youtube.com/watch?v=nv28Cp-ILJ0

Magnetic Force on a Moving Charge:
https://www.youtube.com/watch?v=7MBawzone30

The Homopolar Motor:
https://www.youtube.com/watch?v=6Oj4qvCR6ow

Physics PDF Worksheets:
https://www.video-tutor.net/ph....ysics-basic-introduc

Get your SPECIAL OFFER for MagellanTV here: https://try.magellantv.com/simplehistory. It's an exclusive offer for our viewers! Start your free trial today. MagellanTV is a new kind of streaming service run by filmmakers with 3,000+ documentaries! Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/explore/history

It was just before midnight on the evening of May 10th 1941, and Britain had been at war with Nazi Germany for the last 18 months , when two volunteer members of the Royal Observer Corps were startled to see a lone Luftwaffe twin engined Messerschmitt Bf 110 fly overhead, at a very low altitude ...


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

Chris Kane
https://vocalforge.com/

Music Credit:

Sources:

Rudolph Hess. The Uninvited Envoy by James Leasor , 1962
History’s Mysteries - Shadow Pasts by William D. Rubinstein , 2008
Germany 1858-1990 Hope,Terror and Revival by Alison Kitson, 2001

Prelude to Nuremberg by Arieh J. Kochavi, 1998

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

Welcome to Circle Time! Dive into the ocean environment with our friends at Khan Academy Kids. They will read two stories featuring amazing sea animals. Start with a fiction story called The Finish Line about two friends named Narwhal and Beluga. Then, read along to the book Humpback Whales from Bellwether Media to see real-life pictures of whales underwater. Inspect their head, flippers, and flukes up close!

If you or your child would like to be a guest on Circle Time, please send your submissions to our team. We love sharing artwork, photos, and videos during Show & Tell! http://khan.co/KhanKids-SubmitYourArt.

Learn more about Khan Academy Kids, our free educational app for children ages 2-8, at http://www.khankids.org.

Available on Apple, Google Play, and Amazon app stores:

http://khan.co/KhanKids-YT-Apple
http://khan.co/KhanKids-YT-Google
http://khan.co/KhanKids-YT-Amazon

Subscribe to our channel so you don’t miss a single resource from Khan Academy Kids, and access all of our Circle Time videos on our Circle Time Playlist! http://khan.co/KhanKids-CircleTimePlaylist.

Questions or ideas for Circle Time? Reach our team at khankids@khanacademy.org.

This 3D animation explains the hormonal changes during the menstrual cycle. The menstrual cycle begins with menstrual bleeding, marking the follicular phase’s first day. When the follicular phase begins, levels of estrogen and progesterone are low. As a result, the top layers of the uterus’s thickened lining break down and are shed, and menstrual bleeding occurs.

About this time, the pituitary gland starts sending follicle-stimulating hormone to your ovaries, stimulating the development of 5 to 20 follicles in the ovaries. Each follicle contains an immature egg and produces estrogen. One follicle will soon begin to grow faster than others. This is called the dominant follicle. As the follicle grows, the levels of estrogen in the blood rise significantly. This increase in estrogen begins to inhibit the secretion of the follicle-stimulating hormone. The fall in follicle-stimulating hormone allows smaller follicles to die off. They are, in effect, "starved" of follicle-stimulating hormone.

The increasing amount of estrogen in your body also ensures that the lining of your womb thickens with nutrients and blood. This is so that if you do get pregnant, the fertilized egg will have everything it needs to grow.

The ovulatory phase begins with a rise in the levels of luteinizing hormone and follicle-stimulating hormone. The surge in the luteinizing hormone triggers one of the most prominent follicles to pop open and release its egg, which heads into the fallopian tube and starts its journey toward the uterus. Ovulation usually occurs 16 to 32 hours after the beginning of the surge, around day 14 of the menstrual cycle.

During the luteal phase, the levels of the luteinizing hormone and follicle-stimulating hormone decrease. The ruptured follicle closes after releasing the egg and forms a corpus luteum, which produces estrogen and progesterone, which cause the lining of the uterus to thicken even more. If an egg is fertilized, progesterone supports early pregnancy. But if no fertilization occurs, the corpus luteum will break down between 9 and 11 days after ovulation. This results in a drop in estrogen and progesterone levels, bringing us back to the first stage of menstruation if no pregnancy has occurred.


Timecodes:
0:00 Menstrual Bleeding
0:07 Follicular Phase
0:36 Dominant Follicle
1:12 Ovulation
1:37 Luteal Phase
1:46 Corpus Luteum
0:54 Implantation
1:04 Next video

#Menstruation #Menstrualcycle #animation

This video provides a basic introduction into scientific notation as it relates to addition and subtraction. It explains how to add and subtract two numbers in scientific notation.

Scientific Notation - A Fast Review: https://www.youtube.com/watch?v=ZtB0vJMGve4

Scientific Notation - Addition & Subtraction:
https://www.youtube.com/watch?v=XHds0Uf1zHA

Scientific Notation - Multiplication & Division:
https://www.youtube.com/watch?v=yX6Mq9whsX0

Scientific Notation - More Example Problems:
https://www.youtube.com/watch?v=_BtzXojuM1o

Scientific Notation - Decimal Square Root:
https://www.youtube.com/watch?v=fK67eDWmtrs

___________________________________
Significant Figures - A Fast Review:
https://www.youtube.com/watch?v=l2yuDvwYq5g

Percent Uncertainty:
https://www.youtube.com/watch?v=b881nOem4vg

Unit Conversion Mega Review:
https://www.youtube.com/watch?v=eK8gXP3pImU

Top 50 Mathematical Symbols:
https://www.youtube.com/watch?v=SkhiZCtegXE

How To Calculate Your GPA:
https://www.youtube.com/watch?v=qYHsThZWydY

___________________________________
General Chemistry - For Beginners:
https://www.youtube.com/watch?v=-KfG8kH-r3Y

Organic Chemistry - Basic Introduction:
https://www.youtube.com/watch?v=B_ketdzJtY8

Physics - Basic Introduction:
https://www.youtube.com/watch?v=b1t41Q3xRM8

Algebra For Beginners:
https://www.youtube.com/watch?v=MHeirBPOI6w

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

___________________________________
SAT Math Part 1:
https://www.youtube.com/watch?v=fTGuTEQCsZY

ACT Math Test Prep:
https://www.youtube.com/watch?v=SsA7rZ8kczM

GRE Math Test Prep:
https://www.youtube.com/watch?v=z6lbrzaCbdk

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

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

The Night Before St. Patrick's Day - Children's Stories Read Aloud - St. Patrick's Day Kids Books
by Natasha Wing
Illustrated by Amy Wummer

Click here to purchase The Night Before St. Patrick's Day: https://www.amazon.com/Night-B....efore-St-Patricks-Da

Natasha Wing puts an Irish twist on a Christmas classic. It's the night before St. Patrick's Day, and Tim and Maureen are wide awake setting traps to catch a leprechaun! When they wake the next morning to the sound of their dad playing the bagpipes and the smell of their mom cooking green eggs, they're shocked to find that they've actually caught a leprechaun. But will they be able to find his pot of gold?

Let's explore the difference between similar and congruent figures (similarity vs. congruence) in this conceptual mini-lesson.

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Understand congruence and similarity using physical models, transparencies, or geometry software.

Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.

What does it mean when two figures are similar?
What does it mean when two figures are congruent?
What is the difference between similarity and conrguence?

Image Credit: Emojis provided free by http://emojione.com

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This video is a selected video from the Asynchronous Online Course - “Expanding the Curriculum with the Geogebra Application”.

The course (for 3 Graduate Credits) will be offered by Adams State University for just under $300.

The next session will begin in June.

If you would like to be included in the next cohort please fill out the following form.

https://docs.google.com/forms/....d/e/1FAIpQLSfyhfnfNe