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Though the fighting had finally finished, the consequences of the Second World War were felt for decades after it ended. A power shift from Europe to the United States was only one result. The Cold War between communist Soviet forces and capitalist countries was another, due to tensions that surfaced during the war. The death and destruction caused by this war were also unprecedented, especially in terms of the Holocaust. However, the war also had some positive effects, including the creation of the United Nations and the addition of women to the workforce. In Part 9 of our series on WWII, WatchMojo.com takes a look at the aftermath of World War II. (3:49)
Found by CourtneyMorrison in World War II (WatchMojo Series)
October 10, 2012 at 12:03 PM
Ages: 13 - 18
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Video is about the Cold War Strategic Arms negotiations during the late 70's early 80's. Moscow and Washington were clashing over human rights. The SS20 alarmed the NATO allies, especially the West Germans with a range of 3000 miles these missiles could hit their capitals. The SALT 2 negotiations did not include the SS20 discussion. The super powers had agreed new limits on strategic arms in June 1979 completing the SALT 2 Treaty. SALT 2 Agreement made it possible to limit the arms race, and was very important to the Soviet Union, because at that time the expenditure on all weapons was having a negative effect on growth of production and the living standards of the population. Video is of good quality. Various people tell their stories and historical film is used. Video is appropriate for middle school and high school students.
Found by Barb in Salt 2
August 21, 2009 at 06:33 PM
Ages: 14 - 18
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What caused the First World War? This animated video will show you. (01:52)
Found by teahistory in Causes of World War I
October 7, 2016 at 03:12 PM
Ages: 10 - 17
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This video is about exponents. It tells us about how and what the rules effect and cause when a number has an exponent. Exponent in other words is "# to the power of ..." Power of any number. This five-minute video goes slowly, but the teacher needs to have examples and a handout to help reinforce these examples. (05:27)
Found by freealan in Exponent Rules
September 12, 2010 at 09:33 PM
Ages: 12 - 18
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Part 1: What causes auroras?" Eric Donovan – University of Calgary. The aurora changes dramatically spatially/structurally and over time. Through changes in the aurora you can measure changes in the atmosphere. Run time 02:55.
Found by Larry Sanger in Auroras
June 30, 2009 at 12:00 PM
Ages: 11 - 18
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Human papillomavirus, or HPV, has a strange reputation. You might know of it as a sexually transmitted infection that causes uncomfortable warts, the papilloma, but you also might have heard that it can lead to a deadly form of cancer. Both are actually true, as is the possibility that you can have HPV and experience no symptoms whatsoever. (04.49)
Found by andrewvanzyl in Physical and Health Education
July 19, 2019 at 06:23 AM
Ages: 15 - 18
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Narrator is Howard Goodall. The vocabulary word chromatic is discussed in this episode. The chromatic scale opens up all sorts of new possibilities, especially when it comes to the effect the bass line will have on the chords above it. Because the chromatic scale naturally triggers a more sophisticated and more ambiguous the mood is darker. Music is played to help understand the concepts of this movie. (9:49)
Found by Barb in Bass
August 23, 2009 at 06:00 AM
Ages: 12 - 18
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A lecture on the causes of static electricity. Students need a word wall or hand out as there are many terms they might not be familiar with. A good explanation and introduction.
Found by freealan in Static Electricity
January 10, 2011 at 07:37 PM
Ages: 7 - 18
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This nearly two hour video offers a very complete story of the war and its causes and effects. Well worth watching as it deals with issues that are explained so that most age levels will understand.
Found by freealan in Overview of the War
November 7, 2011 at 09:30 PM
Ages: 9 - 18
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Magnetic fields and their effects on moving electrical charges. This video, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. Run time 08:58.
Found by teresahopson in Magnetism Introduction Through Part 12
August 14, 2009 at 06:27 PM
Ages: 13 - 18
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Highlights of this day in history: American women gain the right to vote, as the U.S. Constitution's 19th Amendment takes effect; Investigators pinpoint the cause of the Space Shuttle Columbia disaster; Aviator Charles Lindbergh dies. (01:30)
Found by CourtneyMorrison in August 21-31
September 24, 2012 at 03:24 PM
Ages: 12 - 18
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This short video shows some of the causes of genetic mutations. Color 3-D animation with pleasant narration. 35 sec.
Found by laneyk in DNA Mutation
July 12, 2009 at 04:09 PM
Ages: 14 - 18
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Cause, Symptoms and Treatments of Sickle Cell Anemia. (Part of the series.) Sickle cell anemia is caused by a distortion of a child's gene, and its symptoms usually include pain, swelling and seizures. This video reivews this information with some graphics. Especially good for viewing in schools that have a population where it has a high rate of occurance.
(02;21)
Found by freealan in Genetic Diseases
January 10, 2011 at 08:11 PM
Ages: 10 - 18
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In this video we examine the many causes of landslides. These mass movements of earth occur when gravity overcomes the frictional forces keeping layers of rock in place on a slope, resulting in planes of land moving and falling. (01:54)
Found by teresahopson in Soil and Erosion
September 26, 2017 at 03:47 PM
Ages: 10 - 18
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These interesting clouds were filmed over Santa Clarita, California in February of 2012. They were forming along with a large lenticular-like cirrus wave structure, about an hour or so before sunset, and provided some very colorful displays. Rainbow effects in the sky are normally caused by water droplets or ice crystals in the atmosphere, which separate and bend different light wavelengths (colors) and send them in different directions as sunlight passes through them. Students will enjoy these beautiful real life images as the rainbow clouds dance across the sky. What a great resource to help build background knowledge and to help make real world connections between nature and the classroom. (3:08)
Found by porter1526 in Clouds
July 13, 2012 at 07:37 PM
Ages: 6 - 18
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We already know that rapid climate change is happening, but how bad could it get? The answer lies with us, human beings. That's because the decisions we make now will determine if the effects of rapid climate change are mild or extreme. Scientists who study the climate tell us that if we continue to add carbon to the atmosphere at the current rate, the Earth will get a lot warmer in the coming years and decades. They use big, brainy computers to simulate what the climate will look like in the future. (2:30)
Found by Mrs Jefferies in Climate Change
April 21, 2012 at 11:28 PM
Ages: 7 - 13
License: Public Domain
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3-D animation that shows how asthma causes 3 specific changes that occur within the airways of the lungs. Grades 5-12. 1:12 min.
Found by laneyk in Asthma
August 19, 2009 at 08:07 AM
Ages: 10 - 18
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As clouds get bigger with the continuous rising of air, they interact with particles of ice and dirt to create a buildup of static electricity. Learn about the interaction of electrical charges in a cloud with charges on the ground with help from a meteorologist in this video on understanding weather. (01:58)
Read more: What Causes Lightning?: Weather & Meteorology | eHow.com http://www.ehow.com/video_4872173_causes-lightning_.html#ixzz1D8eE3NgN
Found by teresahopson in Lightning
February 5, 2011 at 07:37 PM
Ages: 8 - 18
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In the last video, we learned the quantity theory of money and its corresponding identity equation: M x V = P x Y
For a quick refresher:- M is the money supply.
- V is the velocity of money.
- P is the price level.
- And Y is the real GDP.
In this video, we’re rewriting the equation slightly to divide both sides by Y and explore the causes behind inflation. What we discover is that a change in P has three possible causes – changes in M, V, or Y.
You probably know that prices can change a lot, even over a short period of time.
Y, or real GDP, tends to change rather slowly. Even a seemingly small jump or fall in Y, such as 10% in a year, would signal astonishing economic growth or a great depression. Y probably isn’t our usual culprit for inflation.
V, or the velocity of money, also tends to be rather stable for an economy. The average dollar in the United States has a velocity of about 7. That may fall or rise slightly, but not enough to influence prices.
That leaves us with M. Changes in the money supply are the driving factor behind inflation. Put simply, when more money chases the same amount of goods and services, prices must rise.
Can we put this theory to the test? Let’s look at some real-world examples and see if the quantity theory of money holds up.
In Peru in 1990, hyperinflation came into full swing. If we track the growth rate of the money supply to the growth rate of prices, we can see that they align almost perfectly on a graph with both clocking in around 6,000% that year.
If we plot the growth rates of the money supply along with the growth rates of prices for a many countries over a long stretch of time, we can see the same relationship.
We’ll wrap-up the causes of inflation with three principles to keep in mind as we continue exploring this topic:
- Money is neutral in the long run: a doubling of the money supply will eventually mean a doubling of the price level.
- “Inflation is always and everywhere a monetary phenomena.” – Milton Friedman-
Central banks have significant control over a nation’s money supply and inflation rate. (06:46)
Found by MRUniversity in Inflation
December 14, 2017 at 02:01 PM
Ages: 14 - 18
License: Educational Community License
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A two minute video about the causes and effects of the Gold Rush with insights into the American Dream of striking it rich. A good introduction, but clearly too short for anything else
Found by freealan in California Gold Rush
September 3, 2010 at 09:49 PM
Ages: 6 - 18
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(04:19) How would you like to pay $417.00 per sheet of toilet paper?
Sound crazy? It’s not as crazy as you may think. Here’s a story of how this happened in Zimbabwe.Around 2000, Robert Mugabe, the President of Zimbabwe, was in need of cash to bribe his enemies and reward his allies. He had to be clever in his approach, given that Zimbabwe’s economy was doing lousy and his people were starving. Sow what did he do? He tapped the country’s printing presses and printed more money.
Clever, right?
Not so fast. The increase in money supply didn’t equate to an increase in productivity in the Zimbabwean economy, and there was little new investment to create new goods. So, in effect, you had more money chasing the same goods. In other words, you needed more dollars to buy the same stuff as before. Prices began to rise -- drastically.
As prices rose, the government printed more money to buy the same goods as before. And the cycle continued. In fact, it got so out of hand that by 2006, prices were rising by over 1,000% per year!
Zimbabweans became millionaires, but a million dollars may have only been enough to buy you one chicken during the hyperinflation crisis.
It all came crashing down in 2008 when -- given that the Zimbabwean dollar basically ceased to exist -- Mugabe was forced to legalize transactions in foreign currencies.
Hyperinflation isn’t unique to Zimbabwe. It has occurred in other countries such as Yugoslavia, China, and Germany throughout history. In future videos, we’ll take a closer look at inflation and what causes it.
Found by MRUniversity in Inflation
December 14, 2017 at 12:43 PM
Ages: 14 - 18
License: Educational Community License
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How do cancer cells grow? How does chemotherapy fight cancer (and cause negative side effects)? The answers lie in cell division. George Zaidan explains how rapid cell division is cancer’s "strength" -- and also its weakness. (03:50)
Found by Rockefellerteacher in Cancer Overview
January 3, 2013 at 11:03 AM
Ages: 12 - 18
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As we’ve discussed in previous videos, financial intermediaries bridge savers and borrowers. When these bridges crumble, the effects can be disastrous. For businesses, credit shortages can lead to bankruptcy, or layoffs. For individuals, they rely on credit to invest in education or a new home or car. These negative effects show you how crucial intermediaries are to our lives.
Still, what exactly causes failed intermediation? Four answers:
First, insecure property rights. Simply speaking, when you save money at a bank, you expect the ability to pull out your funds when needed. But what if your deposits are frozen? Or confiscated altogether? For instance, in 2013 amidst a financial crisis, the government in Cyprus confiscated bank deposits to help pay down the country’s budget shortfall. You can see how insecure property rights can scare away potential savers.
Second, controls on interest rates. Interest rates are the price of borrowing. Thus, controls on interest rates, often called usury laws, are effectively price ceilings—they set the interest rate lower than the market equilibrium interest rate. With this forced lowering of interest rates, borrowers will want to borrow more, but lenders won’t want to lend. The effect? A lending shortage.
Third, politicized lending. Banks profit by assessing risk, and then loaning, based on that assessment. Banks that excel at assessment succeed. Those poor at it die out. Problems arise when the government intervenes to prop up failing banks, resulting in what we call “zombie banks.” In such cases, intervention undercuts normal competition, and intervention tends to favor banks that are politically connected. In fact, it’s been shown that there’s an inverse correlation between government ownership in banks and a country’s GDP per capita and productivity growth.
Fourth, you have runs, panics, and scandals. Remember, trust is vital to the financial system. When trust erodes, depositors may rush to withdraw their money from banks, causing what is known as a “bank run.” This can cause banks to fail, as we saw during the Great Depression. Scandals can also depress market confidence. Enron, WorldCom and Bernie Madoff may come to mind.
So, which of these four factors contributed to the Great Recession of 2008?
We’ll discuss that in our next video. (08:06)
Found by MRUniversity in Banks
December 14, 2017 at 11:37 AM
Ages: 14 - 18
License: Educational Community License
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The best case for fiscal policy happens during a recession caused by an aggregate demand shock. Even so, it’s hard to get it right because the U.S. economy is massive and complex.
An ideal stimulus is:
1. Timely
2. Targeted
3. Temporary
All of these characteristics present some problems for enacting fiscal policy.
First up, we have timeliness. When a recession hits, there can be a lag in recognizing that it’s happening. Then, the timeline for approving new government expenditures can be quite long. But we’re not done. The new project has to be implemented and that presents its own set of hurdles. There’s also an effectiveness lag – wages are paid over time and have to ripple through the economy. This whole process can take years.
There is another way to achieve a timely stimulus though. U.S. fiscal policy includes some automatic stabilizers that kick-in when the economy isn’t doing so well. These include policies like the progressive tax code and unemployment insurance.
Most economists favor these automatic stabilizers because, not only are they timely, but they’re targeted. They reach the people that are hurting the most in a downturn.
Targeting can present another big problem for successful fiscal policy. A lot of new government projects provide infrastructure jobs. The problem is that it’s not just construction workers that lose their jobs during a recession. When the targeting is off, a stimulus loses some of its effectiveness.
Finally, magnitude matters. For the 2009 U.S. stimulus, targeting and timeliness mattered a little less because the Great Recession was so severe and long-lasting. The 2009 stimulus was the largest since WWII – $900 billion spread out over several years. Even that huge amount of money was a tiny percentage of U.S. GDP. (07:06)
Found by MRUniversity in Fiscal Policy
December 18, 2017 at 01:25 PM
Ages: 14 - 18
License: Educational Community License
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The earth is made up of four layers – the inner core, outer core, mantle and crust. The mantle and crust are a thin skin compared to the other layers. The mantle is about 1,800 miles thick, while the crust is only about 8 miles thick. This thin skin is broken into pieces called tectonic plates. The plates are like puzzle pieces, floating on top of the Earth’s inner core. Sometimes the pieces slide under or against each other and become stuck.When the pieces slide apart, they create tremendous force. This force causes the earth to shake and ripple. (08:02)
Found by teresahopson in Formation of Earthquakes
August 29, 2017 at 03:21 PM
Ages: 3 - 8
License: Proprietary
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