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Doppler Effect
This brief, 3-D animation shows how the Doppler Effect changes sound waves as an object moves toward and away from the listener. Grades 5-12. (30 sec.)
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Pocahontas Biography, Part IV
This is NOT the animation from the well-known studio. This is an animated biography of Pocahontas from the Discovery Channel Education series. This series is aimed at older elementary school children.
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Manhattan: What Henry Hudson Saw in 1609
This video from National Geographic gives us a peek at what Manhattan would have looked like when Henry Hudson discovered it. (Professional video that shows scenes of NYC without the buildings, bridges, and such). (01:39)


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8.1 Loose ends

Before moving into a discussion of the missing element of the rich picture, I want to direct your attention to all the thoughts and ideas I have encouraged you not to put into your rich picture. I imagine you might have collected quite a list of loose ends. The next activity will involve some of these.

Expect to take about half an hour to do the next activity.


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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to c
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1.6.5 Folate (folic acid, vitamin B9)

Folate is a generic name for a group of related compounds. The name ‘folate’ was based on the word ‘foliage’, after it was identified in a crude extract from spinach, though it is also found in liver, other green vegetables, oranges and potatoes and it is often added to breakfast cereals (usually listed as folic acid). Folate is less sensitive to heat than many of the B vitamins, though it is destroyed if food is reheated or kept hot for long periods. Folate is involved in amino acid
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4.3 Genes and ageing

It is often assumed that ageing is genetically determined, because each species has a characteristic, well-defined maximum lifespan.
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Active galaxies

Figure 6 shows a schematic optical spectrum of an active galaxy. It is immediately apparent that the emission lines are stronger and broader than in the spectrum of a normal galaxy shown in Author(s): The Open University

6 Manipulating data in computers: introduction

Sections 1 to 5 of this course have shown that in a computer all types of data are represented by binary codes, and that programmers must make sure that the programs they write treat this data appropriately in any particular application: as text if it is intended to be text, as a binary fraction if it is intended to be a binary fraction, and so on.

Programmers must also ensure that the programs manipulate the binary codes in an appropriate way for the particular application. But what so
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SAT Prep: Test 8, Section 2, Part 1
Students, improve your math SAT score! The instructor uses an electronic chalkboard to model problems.  This video is appropriate for high school students. Uses a textbook (the official SAT study guide) commonly found in bookstores, but it is not absolutely necessary as the narrator does all work on the screen. Problems 1-4 starting on page 1.
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Self Inflating Fish
Watch this video and see a fish that looks more like a balloon! This fish is actually a fish, a balloon, and a poisonous pill all in one. Watch an otter try to eat this fish without much success. This video is an example of animal defense. Run time 01:24.
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2.4.1 Archaeological evidence

This feels in some ways like the most ‘real’ source – where you can almost touch the Classical world, and where you get a sense of what the Classical world looked like. Classical archaeology covers a wide range of areas: not just buildings like the Parthenon or the temples at Paestum, but also cities, landscapes, graves, coins, battlefields, everyday items, plant and animal remains, ancient rubbish and much else. Archaeology often throws up evidence where literature doesn't. People, aft
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The Space of Dance: Media, Metaphor and Technology
Ellen Bromberg, Associate Professor, Dept. of Modern Dance. describes how in recent years, innovation in dance has included the integration of media and technology, both on stage and on screen, in a multitude of ways. The use of interactive programs that
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6.1 Direct proportion

The first type of proportion relationship is known as direct proportion. Two quantities are said to be directly proportional to each other if when one doubles, triples, quadruples, the other also doubles, triples, quadruples. For example, if you buy three times as many items as usual, you would expect to have to pay three times as much money (unless there was some special offer available), because the price is directly proportional to the number of items bought.

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The Ocean Floor - by StudyJams
Earth's most magnificent and enormous landforms are all on the ocean floor.  Volcanoes and earthquakes change the ocean floor, creating new landforms.  Erosion on land also deposits minerals and animal matter on the ocean floor.  Learn more about the ocean floor with this slide show from StudyJams.  Vibrant photos are set to music, with information written under each photo.  A short, self-checking quiz is also provided with this link.
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8.3 Developing a strategy

In developing a strategy for improving your problem-solving skills you are aiming to:

  • identify the opportunities you can use to develop and practise your problem-solving skills;

  • establish the outcomes you hope to achieve and targets for achieving them;

  • identify the resources you might use for developing your skills, including people who might be able to help you as well as sources of data, books, study guides, tutoria
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11.6 Publishing controversial new ideas

Horton, R. (2004) ‘The lessons of MMR’, The Lancet, 363, 6 March 2004, pp 747–749 Elsevier. Copyright © 2004 Elsevier.

It seems obvious now that had we appreciated the full context in which the work reported in the 1998 Lancet paper by Wakefield and colleagues was done, publication would not have taken place in the way that it did. These are difficult judgments to make in hindsight. For example, our sensitivity to potential conflicts of interest is very much
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7 Independent T-Tests

Activity 6

0 hours 20 minutes

This activity introduces the independent t-test – a powerful test to use when you are comparing two groups or conditions. There are two variants of
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Creating a Responsive Layout
This video shows you how to target mobile devices by creating responsive layouts in Edge Animate.
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5.8 Plagiarism

Referencing is not only useful as a way of sharing information, but also as a means of ensuring that due credit is given to other people's work. In the electronic information age, it is easy to copy and paste from journal articles and web pages into your own work. But if you do use someone else's work, you should acknowledge the source by giving a correct reference.

Taking someone's work and not indicating where you took it from is termed plagiarism and is regarded as an infringement of
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