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In this video clip, Secretary of State John Foster Dulles delivers a statement of support for France after its defeat by the Vietnamese in the 55-day battle of Dien Bien Phu, which ended on May 7, 1954. (3:46)
Found by CourtneyMorrison in Dien Bien Phu Battle
August 18, 2012 at 03:57 PM
Ages: 13 - 18
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Held on October 28, 1980, the debate between former California governor Ronald Reagan and incumbent President Jimmy Carter covers the issues of inflation, the energy crisis and terrorism. In his closing statement, Reagan makes an impact when he poses this question: "Are you better off now than you were four years ago?" (1:06)
Found by CourtneyMorrison in 1980 Debates
June 24, 2012 at 04:44 PM
Ages: 13 - 18
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This is how you include air resistance in projectile motion. It requires the Drag Force and Numerical Modeling (or the Euler Method). It is also very helpful to use a spreadsheet to do the calculations. I prove a statement from a previous projectile motion problem video, "Air resistance decreases the x displacement of the ball by less than 1 cm."
Content Times:
0:22 The statement this video proves
1:01 The basic concept of air resistance
1:54 The Free Body Diagram
2:20 The Drag Force Equation
3:13 Information about the Lacrosse Ball
4:03 The Drag Coefficient
4:55 The Density of Air
5:18 How the Drag Force affects the motion
5:58 The basic idea of Numerical Modeling (or the Euler Method)
6:50 Solving for the acceleration in the x direction
8:53 Solving for the final velocity in the x direction
9:54 Solving for the final position in the x direction
11:41 Entering the Lacrosse Ball information into Excel
13:34 Solving for the Drag Force in x direction in Excel
14:29 Solving for the acceleration in the x direction in Excel
14:58 Solving for the final velocity and final position in the x direction in Excel
15:46 Solving for the acceleration in the y direction
17:21 Solving for all the variables in the y direction in Excel
19:13 Click and Drag Copy. Harnessing the Power of Excel!
19:43 Understanding the numbers in Excel
20:35 Solving for the decrease in the x displacement caused by the Drag Force
Want lecture notes & the Excel File?
The original problem videos for this are:
(part 1 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity
(part 2 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity
How Many Attempts did it Really Take? - with live music from Amos Lee
Next Problem: Nerd-A-Pult – An Introductory Projectile Motion Problem
1¢/minute
Found by Flipping Physics in Friction
May 9, 2014 at 01:19 PM
Ages: 10 - 18
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Edgar Allan Poe and Robert E. Lee born; Indira Gandhi is elected prime minister of India; Bill Clinton admits making false statements under oath about his relationship with Monica Lewinsky. (01:38)
Found by teresahopson in January 11-20
January 17, 2018 at 03:04 PM
Ages: 16 - 18
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In a broadcast from the White House on April 28, 1965, President Lyndon B. Johnson reads a statement to the nation on his decision to deploy U.S. troops to the Dominican Republic. U.S. Marines were ordered to safely evacuate Americans from the Caribbean country, where internal fighting could not be contained. (01:18)
Found by CourtneyMorrison in Johnson Speeches
May 24, 2012 at 04:03 PM
Ages: 13 - 18
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On November 7, 1972, incumbent President Richard Nixon won a second term in a landslide victory over Democrat George McGovern. In a brief statement from the Oval Office, President Nixon promises to bring "peace with honor" in Vietnam and to usher in a "new era of peace" with the Soviet Union. (01:03)
Found by CourtneyMorrison in Nixon Speeches
May 27, 2012 at 01:46 PM
Ages: 13 - 18
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Mario Savio, leader of the Free Speech Movement at the University of California, Berkeley, was a frequent speaker in the spate of student demonstrations held on campus in fall 1964. In one public statement, Savio protests the university's ban of political activity on school grounds. (2:48)
Found by CourtneyMorrison in The 1960's
August 24, 2012 at 12:19 AM
Ages: 13 - 18
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In this video clip, take a brief look at the life of John Lennon, a member of the Beatles, in the sixties. This video clip includes information about his marriage to Yoko Ono and also about his controversial statement that lead to nationwide unrest. (2:54)
Found by CourtneyMorrison in Lennon, John
August 19, 2012 at 12:07 AM
Ages: 16 - 18
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On August 4, 1964, Arthur Sylvester, assistant secretary of defense, makes a press statement about North Vietnam's attack on two U.S. destroyers that were on patrol in the Tonkin Gulf. (1:08)
Found by CourtneyMorrison in Gulf of Tonkin
August 7, 2012 at 11:04 PM
Ages: 13 - 18
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(06:42) In our previous macroeconomics video, we said that the accumulation of physical capital only provides a temporary boost to economic growth. Does the same apply to human capital?
To answer that, consider this: what happens to all new graduates, in the end?
For a while, they’re productive members of the economy. Then age takes its toll, retirement rolls around, and eventually, the old workforce is replaced with a new infusion of people. But then, the cycle restarts. You get a new workforce, everyone’s productive for a while, and then they too retire.
Does this ring a bell?
It should, because this is similar to the depreciation faced by physical capital.
Similarly, are there diminishing returns to education? It likely wouldn’t pay off for everyone to have a PhD, or for everyone to master Einstein’s great theories.
That means the logic of diminishing returns, and the idea of a steady state, also applies to human capital.
So, now we can revise our earlier statement.
Now we can say that the accumulation of any kind of capital, only provides a temporary boost in economic growth. This is because all kinds of capital rust. So, one way or another, we’ll reach a point where new investments can only offset depreciation.
It’s the steady state, all over again.
However, what does the journey to steady state look like?
The Solow model predicts that poor countries should eventually catch up to rich countries, especially since they’re growing from a lower base. And given their quicker accumulation of capital, poorer nations should also grow faster, than their more developed neighbors.
And eventually, every country should reach similar steady states.
In other words, we would see growth tracks that all eventually converge.
So, why isn’t this always the case? Why, in some cases, are we seeing the “Divergence Big time,” as coined by economist Lant Pritchett?
The answer to these questions, lies in the institutions of different countries and the incentives they create.
Assuming that a certain set of countries do have similar institutions, that’s where we see the convergence predicted by the Solow model. We see that poorer countries do grow faster than their richer counterparts. And conditional on having similar institutions, eventually, even poorer countries will reach a similar steady state of output as more developed nations. We call this phenomenon conditional convergence.
You can think of it as a national game of catch-up, with catch-up only happening if institutions don’t differ.
What happens though, once all this catching up is done?
Let’s not forget that there’s still another variable in the Solow model. This is variable A: ideas -- the subject of our next video.
There, we’ll show you how ideas can keep a country moving along the cutting edge of growth.
Found by MRUniversity in Labor Market
December 14, 2017 at 10:43 AM
Ages: 14 - 18
License: Educational Community License
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Learn about Charles Darwin's Theory of Natural Selection. His 4 statements include: (1) Individuals within a population differ. (2) The differences are, at least in part, passed from parent to offspring. (3) Some individuals are more successful at surviving and reproducing than others. (4) The successful individuals succeed because of variant traits they have inherited and will pass on to their offspring. (3:00)
Found by teresahopson in Natural Selection
February 8, 2020 at 08:29 AM
Ages: 12 - 18
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Before you break out those flash cards to have students practice their addition and subtraction facts, think about what visual models you used to teach them! Identification of number and its value (not symbolic representation) is a helpful tool when a student needs to practice facts. Listen to this teacher walk us through the language. Watch our for the "So...." statement that really ties the concept back to the learning experience and encourages math communication through modeling meta-cognitive thinking! This is a great resource to use as teacher professional development. (01:13)
Found by porter1526 in Teaching Singapore Math
April 21, 2012 at 09:58 PM
Ages: 18 - 18
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This selection features a video showing a strategy to use in guided reading groups. Students read a paragraph or page silently and then state the main idea with a statement that begins, " I think that means.." The video shows a teacher guiding students in using this strategy. ( 2:56)
Found by michellehoggard in Guided Reading
July 23, 2011 at 09:47 AM
Ages: 17 - 18
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My name is Virginia. I'm 14 years old. I live in Camilla, Georgia, and I get fun entertainment and ease out of technology. It just makes everything a lot easier for me. I just love to experience the different things you can do with it and how it entertains you and what you can do in a project or to make a statement. Living in a small town in rural Georgia doesn't keep this 14-year-old from connecting with the global village.(6:44)
Found by Mrs Jefferies in Digital Generation
August 17, 2011 at 10:44 PM
Ages: 10 - 18
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The Declaration of Independence was a statement adopted by the Continental Congress on July 4, 1776, which announced that the thirteen American colonies, then at war with Great Britain, regarded themselves as independent states, and no longer a part of the British Empire. (10:20)
Found by teresahopson in Declaration of Independence
April 19, 2019 at 01:45 PM
Ages: 10 - 18
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Highlight parts of a whole by clicking on them with the mouse. When one or more parts are highlighted, a corresponding statement and fraction will appear next to the picture. There are more instructions to the right of the Java applet.
Found by teresahopson in Decimal and Fraction Virtual Manipulatives
May 9, 2010 at 10:50 AM
Ages: 6 - 11
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This video is part seven of a mini-series based on the life of Anne Frank. (See part one for a description of the series.) In this segment, a new person joins the group in hiding, and the rules are explained to him. Anne's positive spirit is shown by her comment that she believes they are quite lucky. (The video deals with Anne entering adulthood from 5:05-6:00, and contains the statement , "Da... you, you beast!" at 9:26). (10:11)
Found by michellehoggard in Frank, Anne
March 31, 2012 at 03:56 PM
Ages: 12 - 18
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On August 4, 1981, President Ronald Reagan reads a statement to the press on his decision to fire any air traffic controllers who do not show up to work within 48 hours. After negotiations with the federal government to raise their pay failed, 13,000 air traffic controllers went on strike. (00:29)
Found by CourtneyMorrison in Reagan Speeches
May 18, 2012 at 09:39 PM
Ages: 12 - 18
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Mathematical proofs applied to hypothetical statements shape this discussion on mathematical induction. This segment exhibits special cases, looks at the development of number patterns, relates the patterns to Pascal’s triangle and factorials, and elaborates the general form of the theorem. (28:45)
Found by Mrs Jefferies in Algebra In Simple Terms (series)
April 7, 2011 at 10:24 PM
Ages: 14 - 18
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More at http://xoax.net
This C++ video tutorial shows how to pass arguments into functions and return values from thema return statement causes execution to leave the current subroutine and resume at the point in the code immediately after where the subroutine was called — known as its return address. The return address is saved, usually on the process's call stack, as part of the operation of making the subroutine call. Return statements in many languages allow a function to specify a return value to be passed back to the code that called the function
Found by Donna_Strobel in C++ Series
June 2, 2010 at 06:58 PM
Ages: 14 - 18
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On July 27, 1953, the Korean War armistice was signed, ending three years of fighting that involved two dozen nations. In his public statement delivered an hour after the signing, President Eisenhower commemorates those who fought to keep freedom alive. (0:45)
Found by CourtneyMorrison in Eisenhower Speeches
May 26, 2012 at 05:41 PM
Ages: 13 - 18
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Walden by Henry David Thoreau is one of the best-known non-fiction books written by an American. Published in 1854, it details Thoreau’s life for two years, two months, and two days around the shores of Walden Pond. Walden is neither a novel nor a true autobiography, but a social critique of the Western World, with each chapter heralding some aspect of humanity that needed to be either renounced or praised. Along with his critique of the civilized world, Thoreau examines other issues afflicting man in society, ranging from economy and reading to solitude and higher laws. He also takes time to talk about the experience at Walden Pond itself, commenting on the animals and the way people treated him for living there, using those experiences to bring out his philosophical positions. This extended commentary on nature has often been interpreted as a strong statement to the natural religion that transcendentalists like Thoreau and Emerson were preaching. (Description amended from Wikipedia). (14:18:05)
Found by teresahopson in Thoreau, Henry David
August 9, 2019 at 11:36 AM
Ages: 18 - 18
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A common statement made by so many people interested in the Civil War is, McClellan wasn’t aggressive enough. Multiple people have quoted Abraham Lincoln that McClellan had the “slows.” (06:28)
Found by teresahopson in McClellan, George B.
August 20, 2021 at 09:40 AM
Ages: 13 - 18
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The political statements from politicians do not reflect those of WatchKnowLearn. They are included for information only as they are ACTUAL statements. From current data, it seems that deaths due to Covid-19 could number between a few million to tens of millions, depending on what measures we take to curb the disease. (05:24)
Found by teresahopson in Coronavirus
April 26, 2020 at 12:53 PM
Ages: 15 - 18
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