Where does the sunrise and set?
In this video, I will explain why the sun rises in the east and sets in the west.
The sun only sets due east two times a year.
During the spring and autumn equinox, the sun sets due east. After this, the sunsets either further north or south.

Maths Lab+GeoGebra Training by Try For Learn Day 4
GeoGebra session
Presentation by Sujan Kafle

Maths Lab + GeoGebra Training Day 11 By Try For Learn, 2nd Session: GeoGebra by Try For Learn Team
Presentation: Nabin Devkota

This statistics tutorial explains how to calculate the mean of grouped data. It also explains how to identify the interval that contains the median and mode of a grouped frequency distribution table.

Introduction to Statistics: https://www.youtube.com/watch?v=XZo4xyJXCak

Mean, Median, Mode, & Range:
https://www.youtube.com/watch?v=A1mQ9kD-i9I

Weighted Mean & Averages:
https://www.youtube.com/watch?v=LdrBNhWw9AM

Find Missing Value Given The Mean:
https://www.youtube.com/watch?v=l8KrAo089_U

_______________________________________
Arithmetic, Geometric, & Harmonic Mean:
https://www.youtube.com/watch?v=6G6i8vSa8Zs

Simple Frequency Tables:
https://www.youtube.com/watch?v=lyRbCwDDnJo

Stem and Leaf Plots:
https://www.youtube.com/watch?v=MUCvUgGfzdo

________________________________________
Quartiles, Deciles, & Percentiles:
https://www.youtube.com/watch?v=40o82o3uNfk

Interquartile Range & Outliers:
https://www.youtube.com/watch?v=STSP8gTSdT8

Standard Deviation of Grouped Data:
https://www.youtube.com/watch?v=x6Pnf57wRAs

________________________________________
Introduction to Probability:
https://www.youtube.com/watch?v=SkidyDQuupA

Probability Formulas:
https://www.youtube.com/watch?v=bddckR734aM

Probability Tree Diagrams:
https://www.youtube.com/watch?v=w4wKXVwtGac

Probability - Normal Distributions:
https://www.youtube.com/watch?v=CjF_yQ2N638

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

Practice Your Spanish With Chateo - a Spanish-speaking chatbot! | Get a discount off your first 6 months with code CHATEOBOT | Sign up at: https://www.senorjordan.com/chat
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#Shorts

KINDLY VISIT THE LINK BELOW TO VIEW THE UPDATED VIDEO. THANK YOU.

https://youtu.be/RND6CR3tjag

However, while some people tried to cure the plague by punishing others, some tried to cure it by punishing themselves.
This form of religious self-punishment was known as flagellation and it experienced a revival on a new scale because of the Black death.

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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


Script:
Hannah Purtymun

Narrator:

Chris Kane
https://vocalforge.com/

Sources:

https://pastebin.com/KTe9tNr3

This video walks you through the step by step process for adding fractions and whole numbers.


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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.

#navodaya
#sainik
#aissee

One scientist caused two environmental disasters and the deaths of millions. A part of this video is sponsored by Wren. Offset your carbon footprint on Wren: ​https://www.wren.co/start/veritasium. For the first 100 people who sign up, I will personally pay for the first month of your subscription!

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

Massive thanks to Prof. Francois Tissot for suggesting we make a video on the topic of isotope geochemistry. Huge thanks to Prof. Bruce Lanphear for consulting with us on lead and cardiovascular diseases. Thanks to Rayner Moss for the help with the fire-piston.

Patterson’s 1995 interview audio courtesy of the Archives, California Institute of Technology.

▀▀▀
Other great resources you should check out:
Bill Bryson has a chapter in his fantastic “A Short History of Nearly Everything”
Radiolab have a wonderful podcast: https://www.wnycstudios.org/podcasts/...
Cosmos: A Spacetime Odyssey has a wonderful episode – S1E7 which does a great job of telling the story of Clair Patterson
A fantastic Mental floss article – https://www.mentalfloss.com/article/9...

▀▀▀
References:

Much of the lead-crime hypothesis data is from Rick Nevin’s work – https://ricknevin.com/

WHO factsheet on lead poisoning – https://www.who.int/news-room/fact-sh...

WHO press release about the end of leaded gasoline https://news.un.org/en/story/2021/08/...

UNICEF report – https://ve42.co/UNICEF

Needleman, H. (2004). Lead poisoning. Annu. Rev. Med., 55, 209-222. https://ve42.co/Needleman1

Needleman, H. L. (1991). Human lead exposure. CRC Press. https://ve42.co/Needleman2

Needleman, H. L. et al. (1979). Deficits in psychologic and classroom performance of children with elevated dentine lead levels. New England journal of medicine, 300(13), 689-695. – https://ve42.co/Needleman3

Needleman, H. L. et al. (1996). Bone lead levels and delinquent behavior. Jama, 275(5), 363-369. https://ve42.co/Needleman4

Kovarik, W. J. (1993). The ethyl controversy: the news media and the public health debate over leaded gasoline, 1924-1926 https://ve42.co/Kovarik2

Edelmann, F. T. (2016). The life and legacy of Thomas Midgley Jr. In Papers and Proceedings of the Royal Society of Tasmania https://ve42.co/Edelmann

More, A. F. et al. (2017). Next‐generation ice core technology reveals true minimum natural levels of lead (Pb) in the atmosphere: Insights from the Black Death. GeoHealth, 1(4), 211-219. https://ve42.co/More1

McFarland, M. J., et al. (2022). PNAS 119(11), e2118631119. https://ve42.co/McFarland

Kovarik, W. (2005). Ethyl-leaded gasoline. International Journal of Occupational and Environmental Health, 11(4), 384-397. https://ve42.co/Kovarik3

Nevin, R. (2007). Understanding international crime trends: the legacy of preschool lead exposure. Environmental research, 104(3), 315-336. – https://ve42.co/Nevin2007

Ericson, J. E., et al. (1979). Skeletal concentrations of lead in ancient Peruvians. New England Journal of Medicine, 300(17), 946-951. – https://ve42.co/Ericson1

Patterson, Claire. The Isotopic Composition of Trace Quantities of Lead and Calcium https://ve42.co/Patterson1

Boutron, C. F., & Patterson, C. C. (1986). Lead concentration changes in Antarctic ice during the Wisconsin/Holocene transition. Nature, 323(6085), 222-225. – https://ve42.co/Boulton1

Patterson, C. (1956). Age of meteorites and the earth. Geochimica et Cosmochimica Acta, 10(4), 230-237. – https://ve42.co/Patterson2

Lanphear, B. P. et al (2018). Low-level lead exposure and mortality in US adults: a population-based cohort study. The Lancet Public Health, 3(4), e177-e184. – https://ve42.co/Lanphear1

Schaule, B. K., & Patterson, C. C. (1981). Lead concentrations in the northeast Pacific: evidence for global anthropogenic perturbations. Earth and Planetary Science Letters, 54(1), 97-116. – https://ve42.co/Schaule1

▀▀▀
Special thanks to Patreon supporters: Inconcision, Kelly Snook, TTST, Ross McCawley, Balkrishna Heroor, Chris LaClair, Avi Yashchin, John H. Austin, Jr., OnlineBookClub.org, Dmitry Kuzmichev, Matthew Gonzalez, Eric Sexton, john kiehl, Anton Ragin, Diffbot, Micah Mangione, MJP, Gnare, Dave Kircher, Burt Humburg, Blake Byers, Dumky, Evgeny Skvortsov, Meekay, Bill Linder, Paul Peijzel, Josh Hibschman, Mac Malkawi, Michael Schneider, jim buckmaster, Juan Benet, Ruslan Khroma, Robert Blum, Richard Sundvall, Lee Redden, Vincent, Stephen Wilcox, Marinus Kuivenhoven, Clayton Greenwell, Michael Krugman, Cy 'kkm' K'Nelson, Sam Lutfi, Ron Neal

▀▀▀
Written by Derek Muller, Petr Lebedev, Chris Stewart, and Katie Barnshaw
Edited by Trenton Oliver
Filmed by Petr Lebedev
Animation by Fabio Albertelli, Jakub Misiek, Ivy Tello, Mike Radjabov, and Caleb Worcester
SFX by Shaun Clifford
Additional video/photos supplied by Getty Images
Music from Epidemic Sound
Produced by Derek Muller, Petr Lebedev, and Emily Zhang

Join our special guest Caitie from Super Simple Songs in an extra special Circle Time! Today we’ll start by singing the Hello song, and then Caroline and Sophie will read the book “Ollo’s Toy House” by Cynthia Platt. Learn new words from the book like floors, flat, and frame. Think about building your own toy house. What would it look like? How would you build it? Caroline has some ideas!

Try making a toy house or fort at home. Tell us about it! Send us a photo or video so we can see and share what kids create! Submit your artwork to http://khan.co/KhanKids-SubmitYourArt.

Check out our printable activities for hands-on fun!
http://khan.co/KhanKids-Printables

Download Khan Academy Kids, our free educational app for children ages 2-7, on Apple, Google Play, and Amazon app stores:


http://khan.co/KhanKids-YT-Apple
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Subscribe to our channel so you don’t miss a single episode of Circle Time!

⚔️Download Rise of Kingdoms for free🪓: https://patron.me/SimpleHistoryROK and use the bonus code ROKVIKINGS for in-game rewards.
🛡️Join the event here🛡️: https://bit.ly/ROKGiveaway_SH and you will have the chance to win an iPhone 12

Operation 'Greif', also known as Operation Griffin
As their last trick the Germans planned to create chaos and confusion among the American troops.

The essence of the plan was to form a unit consisting of German soldiers who spoke fluent English with an American dialect.
It was planned for these Germans to be dressed up as American soldiers and equipped with American weapons, tanks and vehicles.


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.

SIMPLE HISTORY MERCHANDISE

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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/

Sources:
Pallud, Jean-Paul. Ardennes, 1944: Peiper and Skorzeny. Osprey Pub., 1988.
Piekałkiewicz, Janusz, Nadia Fowler, and Francisca Garvie. Secret Agents, Spies, and Saboteurs: Secret Missions of the Second World. David and Charles, 1974.
Breuer, William B. Daring Missions of World War II. J. Wiley, 2001.
Cole, Hugh M. The Ardennes: Battle of the Bulge. Office of the Chief of Military History. Department of the Army, 1965.

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

Sigurd had even ordered all of his men to put  severed heads of the men they had slain on their horses for the ride home to show the people how he had won a great victory and killed his enemies!  Unfortunately for Sigurd, he was about to suffer one of the strangest deaths in history!   

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:

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T-Shirts

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Simple history gives you the facts, simple!

See the book collection here:

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Amazon UK
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Credit:
Created by Daniel Turner
Writer:
Conan White
Narrator:

Chris Kane
https://vocalforge.com/

Music Credit

⛵ You’d think that with GPS, modern ships, and mega-container vessels, sailing around Africa would be no big deal today. But here’s the twist: even in the 21st century, captains still try to avoid that route whenever possible. Why? Because the waters around the Cape of Good Hope are some of the most dangerous on Earth. Towering waves, unpredictable storms, and brutal currents have wrecked countless ships through history — and they still pose a threat today. 🌊⚡ Captains are forced back to the “sailor’s graveyard,” and it’s a risk no one takes lightly. Join us as we uncover the real reasons why even modern captains dread sailing around Africa, and why this legendary route has never lost its dangerous reputation.

Credit:
NSF NCAR & UCAR / YouTube
TravelChampion / YouTube
solateor / Reddit
ammar and nazrana / YouTube
CC BY 4.0 https://creativecommons.org/licenses/by/4.0:
Old pirates ship: By White_sniper/sketchfab, https://skfb.ly/oRrKB
Stylized Rocks: By Stylized Rocks/sketchfab, https://skfb.ly/oonMT
Animation is created by Bright Side.

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00:00 Introduction and Overview
00:11 Deep Seek vs. ChatGPT: A New Contender
00:37 Personal Insights and Experiences
01:28 Daily Revenue Report
01:56 Deep Seek's Background and Funding
02:35 Technical Analysis and Self-Hosting
03:11 Censorship and Performance Comparison
04:18 Bypassing AI Detectors
05:00 Humanizing AI Content
07:56 Final Thoughts and Recommendations
09:21 Q&A and Community Interaction
10:51 Conclusion and Sign-Off

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

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/differential-calculus/taking-derivatives/derivative_intro/e/tangent-slope-is-limiting-value-of-secant-slope?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus

Watch the next lesson: https://www.khanacademy.org/math/differential-calculus/taking-derivatives/derivative_intro/v/calculus-derivatives-2-new-hd-version?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus

Missed the previous lesson?
https://www.khanacademy.org/math/differential-calculus/taking-derivatives/derivative_intro/v/tangent-slope-as-limiting-value-of-secant-slope-example-2?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialCalculus

Differential calculus on Khan Academy: Limit introduction, squeeze theorem, and epsilon-delta definition of limits.

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 KhanAcademy’s Differential Calculus channel:
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This tutorial video will guide you on how to use the tools points, line segments and midpoints in constructing the midline of a triangle.

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/algebra/x2f8bb115

Sal evaluates -2*f(-6)+g(1) given the graphs of f and g.

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/functions-and-function-notation/e/functions_2?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Watch the next lesson: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/functions-and-function-notation/v/difference-between-equations-and-functions?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Missed the previous lesson?
https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/functions-and-function-notation/v/understanding-function-notation-example-2?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

This video shows how you can create an unrolling circle in Geogebra, in other to explain the circumference of a circle.