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 Hubblecast Light highlights the exciting discovery of the first water detected on a potentially habitable planet. With data from the NASA/ESA Hubble Space Telescope, water vapour has been detected in the atmosphere of a super-Earth with habitable temperatures by University College Longon (UCL) researchers.

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Credit:
Directed by: Bethany Downer
Editing: Nico Bartmann.
Web and technical support: Mathias André and Raquel Yumi Shida.
Written by: Bethany Downer & UCL
Music: tonelabs – Orion Fog (http://tonelabs.com)
Footage and photos: ESA/Hubble, M. Kornmesser, NASA's Goddard Space Flight Center Conceptual Image Lab

Sal solves practice problems where he thinks about which data displays would be helpful in which situations.

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-7th-compare-data-displays/e/comparing-data-displays?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade

Watch the next lesson: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6-shape-of-data/v/shapes-of-distributions?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade

Missed the previous lesson? https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6-mad/v/mean-absolute-deviation-example?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade

Grade 6th on Khan Academy: By the 6th grade, you're becoming a sophisticated mathemagician. You'll be able to add, subtract, multiply, and divide any non-negative numbers (including decimals and fractions) that any grumpy ogre throws at you. Mind-blowing ideas like exponents (you saw these briefly in the 5th grade), ratios, percents, negative numbers, and variable expressions will start being in your comfort zone. Most importantly, the algebraic side of mathematics is a whole new kind of fun! And if that is not enough, we are going to continue with our understanding of ideas like the coordinate plane (from 5th grade) and area while beginning to derive meaning from data! (Content was selected for this grade level based on a typical curriculum in the United States.)

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.

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Each year on 14 February we celebrate St Valentine's Day by giving our loved ones cards or gifts, such as flowers or chocolates. But who was Valentine and what do we know of him?

This short film is from the series Patron Saints.

It is designed to be a classroom resource suitable for teaching Religious Studies at KS1/2 in England, Wales and Northern Ireland, and 1st and 2nd Level in Scotland.

For more content like this, visit the BBC Teach website. Whether you're at home or at school, you can use BBC Teach for free. Our website is home to thousands of free curriculum-mapped videos, arranged by age-group and subject: https://www.bbc.co.uk/teach

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Learn singular and plural nouns with Aaron the magician who changes things from one to many by chanting simple spelling rules. Add -s to the base word to make plurals. Add –es, when you see s, ch, sh, x, or z at the end. When a word ends with a vowel and –y just add –s, and if it ends in a consonant and –y change the -y to –I and add –es. An –f or –fe at the end should be changed to –v and an –es must be added to make plurals. Abracadabra! Get ready to chant the spelling rules and find some examples too!
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Today we're looking at the Kalinin K-12, an experimental tailless bomber. Its future was cut short when Konstantin Kalinin, its designer, met his untimely end. Though the experimental bomber was somewhat unstable and not large enough to be practical, it did at least prove that the concept of large tailless aircraft could work.

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Producing these videos is a hobby of mine - and apparently its now a full-time job too! I have a passion for history, and personally own a large collection of books, journals and other texts, and endeavor to do as much research as possible. However if there are any mistakes, please don't hesitate to reach out and correct anything :)

Sources:
Rose.B (2010). Secret Projects - Flying Wings and Tailles Aircraft
Flying Review International. Vol 22 # 5 (Jan 1967)

Pre-order our book YOU ARE AN ARTIST (which includes new assignments!) here: http://bit.ly/2kplj2h We visited New Orleans for the Prospect.3 exhibition and saw some fantastic art by Carrie Mae Weems, Camille Henrot, Shigeru Ban, Kerry James Marshall, and Tavares Strachan. Let's talk about it!

More information on Prospect.3 New Orleans: http://www.prospectneworleans.....org/exhibition-descr

Our effort under the #SchoolFromHome initiative
We at Swami Vivekanand Public School Huda sec 17 are working hard to keep the flow of learning going. Your kind feedbacks will help us do even better. Please Suggest us ways to make this #schoolfromhome a better experience for you and the kids.

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Created by Sal Khan.

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Finance and capital markets on Khan Academy: Interest is the basis of modern capital markets. Depending on whether you are lending or borrowing, it can be viewed as a return on an asset (lending) or the cost of capital (borrowing). This tutorial gives an introduction to this fundamental concept, including what it means to compound. It also gives a rule of thumb that might make it easy to do some rough interest calculations in your head.

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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Learn more counting, addition, and subtraction lessons in the FREE Khan Academy Kids app! https://go.learn.khanacademy.o....rg/khanacademy/YouTu

Count on with Peck and his pom poms to add the numbers six and five to make eleven. Addition is so much fun with Peck from Khan Academy Kids!

Visit us at http://www.khankids.org to learn more about Khan Academy Kids, a free educational app for preschool through 2nd grade available on Apple, Google Play, and Amazon app stores.

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Get your free trial of MagellanTV here: https://try.magellantv.com/simplehistory. It's an exclusive offer for our viewers: an extended, month-long trial, FREE. MagellanTV is a new kind of streaming service run by filmmakers with 2,000+ documentaries! Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/explore/history

Before Shinohara was killed in action, he had shot down a total of 58 Soviet aircrafts in less than 93 days.
His tally was never surpassed by any other Japanese Army pilot, though some Japanese Naval pilots during World War II went on to shoot down more planes.

Major Mike, is here with a vengeance! Armed with his tactical knife, he's here to do his duty and head into battle. Get the limited edition, (3 weeks only) Simple History plushie! here: https://makeship.com/products/major-mike

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Chris Kane
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Space Shuttle

Reusable low Earth orbital spacecraft

The three parts that made up the space shuttle were the orbiter - the part that resembled an aeroplane, the large orange external tank and the 2 solid rocket boosters.

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Created by Daniel Turner

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Music Credit

Space Station Experience by Unicorn Heads

Learn how to solve a percent of problems. In the video, I solve 10 is 40% of what number?
The formula is over equals percent over 100

Longitudinal waves are waves in which the displacement of the medium is in the same direction as, the direction of propagation or movement of the wave. In other words, the displacement of the medium is parallel to the propagation of the wave

Longitudinal waves are also called compressional or compression waves, because they produce compression and rarefaction when traveling.
I also cover compressions and rarefactions.

Learn about two digit addition.

We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you'd like us to cover any additional topics, please let us know.

For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!

There's Hydrogen and Helium
Then Lithium, Beryllium
Boron, Carbon everywhere
Nitrogen all through the air

With Oxygen so you can breathe
And Fluorine for your pretty teeth
Neon to light up the signs
Sodium for salty times

Magnesium, Aluminium, Silicon
Phosphorus, then Sulfur, Chlorine and Argon
Potassium, and Calcium so you'll grow strong
Scandium, Titanium, Vanadium and Chromium and Manganese

CHORUS
This is the Periodic Table
Noble gas is stable
Halogens and Alkali react agressively
Each period will see new outer shells
While electrons are added moving to the right

Iron is the 26th
Then Cobalt, Nickel coins you get
Copper, Zinc and Gallium
Germanium and Arsenic

Selenium and Bromine film
While Krypton helps light up your room
Rubidium and Strontium then Yttrium, Zirconium

Niobium, Molybdenum, Technetium
Ruthenium, Rhodium, Palladium
Silver-ware then Cadmium and Indium
Tin-cans, Antimony then Tellurium and Iodine and Xenon and then Caesium and...

Barium is 56 and this is where the table splits
Where Lanthanides have just begun
Lanthanum, Cerium and Praseodymium

Neodymium's next too
Promethium, then 62's
Samarium, Europium, Gadolinium and Terbium
Dysprosium, Holmium, Erbium, Thulium
Ytterbium, Lutetium

Hafnium, Tantalum, Tungsten then we're on to
Rhenium, Osmium and Iridium
Platinum, Gold to make you rich till you grow old
Mercury to tell you when it's really cold

Thallium and Lead then Bismuth for your tummy
Polonium, Astatine would not be yummy
Radon, Francium will last a little time
Radium then Actinides at 89

REPEAT CHORUS

Actinium, Thorium, Protactinium
Uranium, Neptunium, Plutonium
Americium, Curium, Berkelium
Californium, Einsteinium, Fermium
Mendelevium, Nobelium, Lawrencium
Rutherfordium, Dubnium, Seaborgium
Bohrium, Hassium then Meitnerium
Darmstadtium, Roentgenium, Copernicium

Nihonium, Flerovium
Moscovium, Livermorium
Tennessine, Oganesson
And then we're done!!

credits
from AsapSCIENCE Music, released May 17, 2013
license
all rights reserved

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Imagine an ocean where water is constantly boiling, it’s boundless, there is no coast in sight. It stretches as far as the horizon, although this fact is evasive to the observer, because as far as the eye can see the horizon is constantly shrouded in dense fog. Thick clouds with not a chink between them hide a huge, but dim sun. Only negligible fluctuations in the level of light indicate transitions from nights to days and nights again. If it has stopped being pitch-dark and it’s deep grey all around you, it means sunrise. And deep down, under scores of kilometres of water, there lies a billion-ton core of scorching ice. This is what the unique and mysterious world of Gliese 1214 b must look like.

#Planets #Ocean #Gliese1214b #Exoplanets #Film #Kosmo #Life #Universe

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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

How should technology be used in the classroom? Find out in our video.

This video was created by Chris Ross.

This video was created to support the campaign "Goal 4 - Quality Education". Find more information on our website http://simpleshow-foundation.org/.