Babbage: Trending: The demise of antibiotics
We talk to Jim O’Neill about how the overconsumption of antibiotics has eroded their effectiveness and discuss whether Facebook is turning into a news publisher
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Naked Science / Massive Solar Storms
This video describes solar storms and the measures scientists take to predict them. This is Episode 9 from Season 1 from the Naked Science series and is suitable for older elementary, middle school, and high school students.

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2.4.4 Historiography

This is the writing of history, another type of source that relies on words. Many of the things we said about literature apply to historiography as well, and we won't need to repeat them. The reason we think it's worth having a separate paragraph on historiography is that where literature is associated with art, history-writing is today associated with truth. As a result, it's a natural instinct to read ancient historians with the expectation that they are more reliable sources than literatur
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2.5 Air circulation

At this stage, air circulation enters and plays a dual role. Firstly, winds transmit moisture horizontally from one location to another. In this way, moisture derived from oceanic evaporation can be transported many miles to a land mass. Secondly, convective or vertical currents arising from unequal heating or cooling can transmit moisture upwards. When it cools, some of the water vapour condenses. It is from these currents that most precipitation develops.


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Continuity of a Function
This video explains the three conditions that must be met in order for a function to be continuous at a certain point. The continuity of a function only exists if these three conditions are met. (0:55)
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3.2.2 Ethane cracking

Although ethane can be cracked thermally, the reaction is slow and does not necessarily yield ethylene at high severity. Careful control of reaction conditions, however, allows the reaction to occur

The yield of ethylene is typically nearly 50 wt% wi
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Virtual Maths, Shapes, Space and Measure, Sine, Cosine, and Tangent
Interactive simulation, formulae for sine, cosine and tangent
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http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Infinitives vs. Gerunds
This video is a lecture using typed slides that explains the difference between infinitives and gerunds.  The lesson begins with the definition of each part of speech.  The instructor uses examples of both parts of speech to help the viewer remember the difference between the two and how to use the parts of speech correctly. (05:06)

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La détection et l'attribution des changements climatiques, le rôle des activités humaines ...

Dans cette vidéo, Serge Planton se focalise sur l'évolution du climat au cours des 160 dernières années. Il met en évidence, à l'aide de simulations, la responsabilité des activités humaines dans le réchauffement observé.


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Map Skills: The Use of Color

How are colors used on maps?  They use colors to show different countries, provinces, or states.  Colors are used to show different elevations on relief or physical maps, different vegetation, climate, or distribution of population.  Video gives examples of each type of map and explains how to use them.  Good video for beginning map readers. (02:31)


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2.3.4 Lateralisation

It has long been suspected that unusual patterns of cerebral lateralisation (i.e. the ‘division of labour’ between left and right hemispheres of the brain) may have some connection with dyslexia. Early researchers noticed an apparent excess of left-handedness in children with specific reading difficulties (and their relatives). However, most dyslexic people are in fact right-handed, and most left-handed people are not dyslexic. Nonetheless, large-scale analyses of the research find
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Affirmative Action and Forced Busing
As blacks benefited from new voting rights and school desegregation, the workplace remained a hostile environment for some. Many businesses openly flaunted hiring policies that excluded blacks or confined them to menial jobs. (Video is narrated with slides and speeches.)

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1.6 Conclusion

This course has presented an overview of the ways in which organisms living in temperate habitats are adapted to survive the winter. The course has shown how a limited set of environmental changes associated with the onset of winter can lead to a diversity of adaptations and therefore a large diversity of species.

On the basis of the examples discussed in this course, we can identify four factors that contribute to the diversity of adaptive strategies for coping with winter.


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The Amistad Trial
In 1841, the Africans on board the Amistad were ruled free by the Supreme Court and would be sent back to Sierra Leone. This three minute video deals with the aftermath of that trial. Students need to learn about the Amistad event first.
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1.1 Introduction to vitamins and why we need them

Before the 19th century, one of the hazards of long sea voyages was a condition called scurvy, whose symptoms were loss of hair and teeth, bleeding gums, very slow healing of wounds, and eventually death. Hundreds of sailors and explorers died from scurvy until a Scottish physician, James Lind, in the 1750s discovered that adding a daily portion of citrus fruit to the rations of those at sea could prevent the condition, whereas adding cider, vinegar or various other substances that he tested,
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Plants, Photosynthesis, and Solar Energy
The planet is in trouble; fossil fuels are being depleted and are contributing to global warming. Plants, however, have been directly harnessing solar energy for as long as they have existed. A flash talk from Tomas Leijtens.
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Nicole Atkins and XPN | 07/06/10
Singer-songwriter Nicole Atkins is performing at the XPoNential Music Festival on the Camden Waterfront this weekend. State of the Arts producer Christopher Benincasa chats with the Jersey shore native about sharks, couch surfing, touring in mini-vans, and, of course, making music. For more information about the festival, check out jerseyarts.com/festivals and xpn.org.
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Spanish Listening Comprehension for Absolute Beginners #19 - Talking About a Party in Mexican Spanis
  Learn Mexican Spanish with SpanishPod101.com! Do you find yourself only understanding bits and pieces of Mexican Spanish conversations? Do you spend hours trying to figure out what that person said to you in Mexican Spanish? Then this Mexican Spanish Listening Comprehension for Absolute Beginners series is for you! In each lesson of this five-part series, [...]
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Rights not set

Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to choose from o
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