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Tim Flannery on The Superorganism

Tim Flannery speaks with Eve Bowen about E. O. Wilson and Bert Hölldobler's The Superorganism, a new book on insect societies, and its implications for understanding humanity.


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4.8.1 Mean

The mean is found by adding up all the values in a set of numbers and dividing by the total number of values in the set. This is what is usually meant by the word ‘average’.

For example, if a company tests a sample of the batteries it manufactures to determine the lifetime of each battery, the mean result would be appropriate as a measure of the possible lifetime any of the batteries and could be used to promote the product.

Author(s): The Open University

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Copyright © 2016 The Open University

Werkwoorden vervoegen : Tegenwoordige tijd
potlood.jpg

Werkwoorden vervoegen:

  • bordplaten
  • oefeningen
  • synthese
  • toets

 


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VUCast: Wearable Robot
This Week on VUCast, Vanderbilt’s online newscast: Amazing Vanderbilt research you have to see to believe! How this “wearable robot” helps paraplegics walk! How winning a football game could influence who wins the presidency.
Author(s): Vanderbilt News and Communications

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Roots and Shoots
In this outdoor activity, learners discover that plants aren't just shoots (stem, branches, leaves, and flowers) growing above ground, but contain plenty of roots growing underground--more than half the mass of a plant can be its roots. Learners dig up "mystery" plants to investigate their root structures, and match them to different types of root systems. Learners also learn about animals found near plant roots and how humans use roots.
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Cómo mantener el equilibrio al lanzar la bola - en español
Una de las cosas más difícles de ser un pitcher es ser capaz de mantener el equilibrio cuando se lanza la bola. Aquí te enseñan un ejercicio con el que conseguirás una mayor estabilidad cuando la lances. (1:55)
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Reaction Mechanism
Part of kinetics is understanding reaction mechanisms. The teacher in this video introduces mechanims first by discussing the important terms: complex reaction, intermediate, catalyst, and the rate determining step (06:06).
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Energy Diagrams
Energy diagrams are an important concept to master when learning about kinetics. They will show up on tests like the AP exam for sure. The teacher in this video draws some energy diagrams and talks about the changes a catalyst can cause (03:49).
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My Angle on Cooling
In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced. Learners perform an experiment that measures how the heat experienced by a test subject changes as the distance or the viewing angle changes. Learners distinguish which effect is more important for determining the seasons on Earth. Learners examine how NASA's MESSENGER mission to Mercury takes advantage of these passive
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Experiencing Parallax With Your Thumb
In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system. Learners can see the parallax effect in action by holding their thumb out at arm's length and following simple instructions. This activity will help learners understand how the brain uses information to detect distances. This resource also describes three other basic methods for determining distances in space: radar, standard candles, and the Hubble Law.
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Upper Intermediate S5 #5 - You Might be Transferred to China Even If You Speak Only Japanese
Learn Japanese with JapanesePod101.com! When you explain to your friend in Japanese that you feel too tired to go to a party tonight, she begins whining. She tells you that since you already told the host you were both coming, it’s important that you follow through or you won’t be invited again. You suggest telling [...]
Author(s): JapanesePod101.com

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Maersk Drilling CEO sees energy quest moving to deeper seas
Maersk Drilling CEO Claus Hemmingsen explains why the deep-sea drilling business is likely to hold up even in uncertain economic times--so well, in fact, that it may struggle to find skilled workers.
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Climate Change - An Overview
Climate change is defined as the long term change in weather patterns over time. The greenhouse effect is the trapping of heat in the Earth by gasses like carbon dioxide and some scientists argue that increases in atmospheric greenhouse gases will trap more heat. When more heat is trapped, there is more energy to drive weather patterns. This increased heat can also have unpredictable effects such as the melting of ice caps, shifting rainfall patterns and more powerful storms. (03:12)
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One Minute Romanian - flyer
From the makers of the award-winning online language course Coffee Break Spanish comes a new range of titles aimed at busy people who want to acquire the absolute basics of a language. One Minute Languages from the Radio Lingua Network will introduce learners to a new language from scratch. The course is made up of ten lessons and covers topics including basic greetings, introducing yourself, and dealing with language problems. You’ll also learn numbers and other useful words and phrases whi
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'Ga'Hoole, la leyeda de los guardianes' - clip
'Ga'Hoole: La leyenda de los guardianes' es una aventura familiar de fantasía animada, dirigida por Zack Snyder. Se puede enseñar este clip corto en una clase de español para hacer preguntas de comprensión. (02:17)
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Megamind - clip corto en español
Aquí tienen un clip corto de una película americana llamada "Megamind." Se puede mostrar este clip a una clase de español para hacer preguntas de comprensión. (02:09)
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Trading at Noon: Netflix on defense; Stifel bids on KBW
Nov 5 - Netflix adopts a poison pill defense against takeovers, Stifel Financial is set to buy KBW, and pharma stocks are on the radar.
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Sven Vlaeminck - Der Dateneintreiber
By: ZBW Sven Vlaeminck, Deutsche Zentralbibliothek für Wirtschaftswissenschaften – Leibniz-Informationszentrum Wirtschaft (ZBW), berichtet in diesem Kurzinterview über seine Tätigkeit als Projektmanager im Bereich Forschungsdatenmanagement.
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The Four-Square Quilt
In this activity, learners arrange triangles together to make patterns to create paper quilts. Learners experiment arranging the triangles in different ways to make various designs. Use this activity to illustrate how triangles can be combined to make other shapes, reflection, and the different types of triangles (isosceles, right, equilateral, scalene). This resource includes the quilt templates and shapes.
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Scribbling Machines
In this activity, learners explore electronics and motion by making a Scribbling Machine, a motorized contraption that moves in unusual ways and leaves a mark to trace its path. It's made from simple materials and is based on the idea of motion created by an offset motor. Try using harvested motors and switches from discarded toys and electronics to make your Scribbling Machine - this not only keeps costs down, but is a playful and inventive way to explore how everyday objects work. To take the
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