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Chain Reaction In Nuclear Fission_Part 01 Teacherflix 2 Views • 2 years ago

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7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use.

Chain Reaction in Nuclear Fission: When slow neutrons are bombarded on uranium, each uranium nucleus is broken in to two almost equal parts and along with it enormous energy and two or three trash neutrons are emitted. If the conditions are favorable, these neutrons take part in the fission.This leads to a chain of nuclear fissions which continues till the whole of the Uranium is consumed. Thus the energy produced keep on multiplying.We have seen that about 200 MeV MeV- mega electron volts of energy is released due to fission of 1 Uranium nucleus. In this chain reaction, the number of nuclei undergoing fission increases very rapidly, hence the energy produced acquires an enormous amount very soon."The chain reaction is a series of nuclear fissions in which the neutrons produced in each fission cause additional fissions."This chain reaction liberate tremendous amount of energy within short interval of time. But sustaining a self--propagating chain reaction is not easy in practice, because the progressive chain reaction is inhibited due to the following reasons.A Ordinary uranium consists of three isotopes 92U238 92 Uranium 238, 92U236 92 Uranium 236 and 92U235 92 Uranium 235. The major part of ordinary uranium is the isotope 92U238 92 Uranium 238 the remaining are rare. Now, 92U238 92 Uranium 238 can be fissioned only with fast neutrons 1 MeV while 92U235 can be fissioned with slow as well as slow and fast neutrons. Neutrons having energy less than 1 MeV are absorbed by 92U238 through these low energy neutrons can take part is the fission of 92U235 but the probability of their absorption by U238 is much more. Thus the fresh neutrons released in the fission of ordinary uranium being absorbed by U238 are not able continue the chain reaction. This difficulty can be removed in the following two ways: The lighter isotope U235 can be separated from the ordinary uranium by diffusion method. The fission of U235 is now possible by neutrons of any energy high or low. So chain reaction continuous as shows in above.The second way is to slow down the neutrons by any method. So that their energy remains 0.03 eV This can be achieved with help of moderators, which reduce the speed of neutrons very rapidly. Graphite and heavy water are good moderators.The second difficulty in maintaining the chain reaction is that the fast neutrons released by the fission of U235 travel a distance of about 10 centimeter in the substance before they are slow down and fission other nuclei.Therefore, to continue the chain--reaction, the size of the fissionable substance should be bigger than a certain critical size.

🍕📏 All about FRACTIONS | Educational Videos for Children | @HappyLearningENG Teacherflix 4 Views • 7 months ago

NEW VIDEO https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
MORE MATHS https://www.youtube.com/playli....st?list=PLLF_mZmNqOn

🍕📏 Did you know fractions help us share and measure fairly? In this educational video for kids, you’ll learn what fractions are, how they are represented, what numerator and denominator mean, and how to use fractions in daily life.

In Primary School, the subject of Mathematics focuses on developing five key senses: the numerical sense, to work with numbers and operations; the measurement sense, to measure and compare magnitudes; the spatial sense, to understand geometric figures and their properties; the algebraic sense, to identify patterns and use symbols; and the stochastic sense, to interpret data and probabilities. Additionally, the socio-affective sense encourages a positive attitude toward mathematics.

📖 SUBJECT PLAYLISTS
🦖⛰️🐅 NATURAL SCIENCES for Primary School: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
👨‍🏫 SOCIAL SCIENCES for Primary School: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
➕✖️ MATH for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🤴🏰 HISTORY for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🌍⛰️ GEOGRAPHY for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🤝😊 Values and Emotions for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn v=KkCIIQyevjo&list=PL_Y3qbepMRoY7gwuwniiq11oMo6Ofe724

🌍 THE HAPPY LEARNING UNIVERSE

✅ Learn more about Happy Learning and our educational platform: https://happylearning.tv/en/

✅ Discover our social mission: https://happylearning.tv/en/nemesio-diez-foundation/

✅ Download the Happy Learning App:
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- Android: https://play.google.com/store/apps/details?id=tv.happylearning.canal&pli=1

🎓 ABOUT HAPPY LEARNING
Happy Learning is a social enterprise created by the Nemesio Diez Foundation, working to improve people's quality of life through education, health, sports and culture.

As a social company, our mission is to educate all children in the world in values and knowledge, to promote their holistic development and their commitment to society and the planet.

We offer educational resources to families, schools, hospitals and NGOs to ensure that children everywhere have access to a high-quality, comprehensive education.

At Happy Learning, we turn learning into an exciting adventure for primary school children. 🚀
We offer over 2,000 educational resources that combine fun and learning through animated videos, reading materials, interactive games and real-world activities.

📺 HAPPY LEARNING YOUTUBE CHANNEL

Welcome to Happy Learning! 🚀📚
The educational channel where learning is an adventure. Our goal is to spark curiosity and a love for knowledge in primary school children through fun and dynamic educational videos.

Discover the fascinating world of science with videos on Dinosaurs, the Solar System, Invertebrate Animals, Arachnids and much more. Travel back in time with history videos covering Prehistory, the Discovery of America or Ancient Egypt. Learn geography with content about The Earth and Its Movements, the Water Cycle and Parts of the Earth. Strengthen math skills with videos on Multiplication, Subtraction and Matter and Its Properties, and improve Spanish language understanding with lessons on Nouns, Sentences and Subject and Predicate.

Happy Learning transforms education into an exciting experience through animated videos, clear explanations and interactive activities. Perfect for children, parents and teachers seeking high-quality educational content.
🌟 Join our community of explorers!

🐊🦎 ALL About REPTILES: Crocodiles, Lizards and Snakes | Educational Videos | @HappyLearningENG Teacherflix 1 Views • 7 months ago

NEW VIDEOS https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
MORE ANIMALS https://www.youtube.com/playli....st?list=PLLF_mZmNqOn

🐊🦎 Did you know that reptiles have existed for millions of years and were around in the time of the dinosaurs? In this educational video for kids, you’ll learn everything about reptiles, their main characteristics, where they live, and how they adapt to different environments.

Natural Sciences in Primary School aim to help children understand the world around them by developing their curiosity and critical thinking through observation and experimentation. They learn about nature, living beings, the human body, energy, and the environment, while also understanding the importance of caring for the planet.

📖 SUBJECT PLAYLISTS
🦖⛰️🐅 NATURAL SCIENCES for Primary School: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
👨‍🏫 SOCIAL SCIENCES for Primary School: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
➕✖️ MATH for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🤴🏰 HISTORY for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🌍⛰️ GEOGRAPHY for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn
🤝😊 Values and Emotions for Primary School Children: https://www.youtube.com/playli....st?list=PLLF_mZmNqOn v=KkCIIQyevjo&list=PL_Y3qbepMRoY7gwuwniiq11oMo6Ofe724

🌍 THE HAPPY LEARNING UNIVERSE

✅ Learn more about Happy Learning and our educational platform: https://happylearning.tv/en/

✅ Discover our social mission: https://happylearning.tv/en/nemesio-diez-foundation/

✅ Download the Happy Learning App:
- iOS: https://apps.apple.com/es/app/....happy-learning-tv/id
- Android: https://play.google.com/store/apps/details?id=tv.happylearning.canal&pli=1

🎓 ABOUT HAPPY LEARNING
Happy Learning is a social enterprise created by the Nemesio Diez Foundation, working to improve people's quality of life through education, health, sports and culture.

As a social company, our mission is to educate all children in the world in values and knowledge, to promote their holistic development and their commitment to society and the planet.

We offer educational resources to families, schools, hospitals and NGOs to ensure that children everywhere have access to a high-quality, comprehensive education.

At Happy Learning, we turn learning into an exciting adventure for primary school children. 🚀
We offer over 2,000 educational resources that combine fun and learning through animated videos, reading materials, interactive games and real-world activities.

📺 HAPPY LEARNING YOUTUBE CHANNEL

Welcome to Happy Learning! 🚀📚
The educational channel where learning is an adventure. Our goal is to spark curiosity and a love for knowledge in primary school children through fun and dynamic educational videos.

Discover the fascinating world of science with videos on Dinosaurs, the Solar System, Invertebrate Animals, Arachnids and much more. Travel back in time with history videos covering Prehistory, the Discovery of America or Ancient Egypt. Learn geography with content about The Earth and Its Movements, the Water Cycle and Parts of the Earth. Strengthen math skills with videos on Multiplication, Subtraction and Matter and Its Properties, and improve Spanish language understanding with lessons on Nouns, Sentences and Subject and Predicate.

Happy Learning transforms education into an exciting experience through animated videos, clear explanations and interactive activities. Perfect for children, parents and teachers seeking high-quality educational content.
🌟 Join our community of explorers!

Combining like terms, but more complicated | Introduction to algebra | Algebra I | Khan Academy Teacherflix 15 Views • 2 years ago

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

This example of combining like terms in an expression gets a little hairy. Listen closely.

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/e/combining_like_terms_1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/v/combining-like-terms-and-the-distributive-property?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Missed the previous lesson?
https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/v/combining-like-terms-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
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