9.3.1 Weber's Law

Pioneering work on the relationship between ΔI and S was done by the German physiologist, Ernst Weber in the 1830s. Weber found that the increment in stimulation required for a JND was proportional to the size of the stimulus. Weber had subjects lift a small ‘standard’ weight (S) and then lift a slightly heavier ‘comparison’ (T) weight and judge which was heavier. He found that when the difference between the standard and comparison weights was small, the subjects found
Author(s): The Open University

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"The Next Great Clash"
levin coverA talk by Michael Levin. In The Next Great Clash, Michael Levin presents evidence of a global political order on the verge of a historic power shift from West to East. A reemerging China is the only nation with the latent capacity to challenge American hegemony, and Levin demonstrates that such challenges to the status quo usually lead to war. From the World Beyo
Author(s): The Center for International Studies at the Univer

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Is Giving Music Away for Free a Good Idea - Online Music Marketing
Explore our online Music Business courses at: http://bit.ly/GHgvZm Mike King is a course author, instructor, and the Director of Marketing at Berkleemusic, the online extension school of Berklee College of Music. Prior to working at Berklee, he was the Marketing/Product Manager at Rykodisc, where he oversaw marketing efforts for label artists including Mickey Hart, Jeb Loy Nichols, Morphine, Jess Klein, Voices On The Verge, Bill Hicks, The Slip, Pork Tornado (Phish), Kelly Joe Phelps, and Frank
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Far from Moscow
Far from Moscow, "a portal designed to showcase new music from Russia", has been created by a member of academic staff at the University of California, David MacFadyen. MacFadyen started the website to satisfy a wish for knowledge about popular Russian music. The website Far from Moscow covers all types of genres of music, all created in Russia, such as rock, pop, electronic, experimental, instrumental, folk, Latin, jazz, reggae and easy listening. The website features audio and video elements f
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3.1 Introduction

In mammals and birds, homeostasis, the provision of a stable internal environment, includes keeping certain physiological variables, T b, cellular and extracellular water and blood glucose at near constant levels. T b of reptiles varies with T a, but reptiles can only function over a limited range of T b. Nevertheless, vertebrate species live successfully in deserts, which are arid, have low productivity and extremes of <
Author(s): The Open University

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Irrigation and Ancient Egypt
This video is in lecture format and discusses how the use of irrigation, hieroglyphics, architecture (pyramids,sphinx, obelisks), geographic placement (Nile River), and cultural and religious beliefs helped lead Ancient Egypt to be a dominant civilization. (27:34)
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3.5 Consumer behaviour models

Many theorists have developed models of consumer behaviour. Some of these focus on the factors which influence behaviour (such as the model in Figure 1). Others emphasise the stages which consumers go through as they make their decisions to engage in a particular behaviour. Many adopt the ‘belief–feeling–behavioural intention
Author(s): The Open University

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DNA Replication
This is a very simplified overview of the process of how DNA is copied to make a new strand. Animation with narration. Grades 5-12. This video includes closed captioning. (01:03)
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Learning outcomes

After studying this course, you should be able to:

  • demonstrate an understanding of problems associated with defining the Nature of Science

  • write in an informed way about the purposes of compulsory science education

  • be aware of the educational complications and implications associated with the phrase ‘the public understanding of science’

  • show an ability to comment critically on curriculum proposals that aim to promote science citiz
    Author(s): The Open University

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The Longbow, Part 6 of 12
Some scholars claim that the longbow 'made' Britain.This documentary explores the technology of the longbow. Suitable for high school students.
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What Does it Take to Conduct a Reliable Poll?
The statewide Vanderbilt Poll is typically conducted just before the start of each legislative session and at the end of each session, in part to determine how closely the results of the session align with voters’ expectations and priorities.
Author(s): Vanderbilt Division of Communications

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1.3.1 Try some yourself

Activity 6

The new home owners from Example 4 above want to price grass seed, as well as the turf (transport only). The best buy seems to be loose seed, which says ‘1 kilo covers 80 m2’. They wonder what len
Author(s): The Open University

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Beyond infinity
This popular maths talk gives an introduction to various different kinds of infinity, both countable and uncountable. These concepts are illustrated in a somewhat informal way using the notion of Hilbert's infinite hotel. In this talk, the hotel manager tries to fit various infinite collections of guests into the hotel. The students should learn that many apparently different types of infinity are really the same size. However, there are genuinely "more" real numbers than there are positive inte
Author(s): Feinstein Joel F. Dr

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Except for third party materials (materials owned by someone other than The University of Nottingham) and where otherwise indicated, the copyright in the content provided in this resource is owned by

Sur la justice environnementale (Vidéo)

Dans cette vidéo, Jérôme Ballet définit la justice environnementale. Sur la base d'exemples, il met en lumière les revendications des populations dans cette perspective de justice environnementale : plus d'équité, plus de reconnaissance, et plus de participation.


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The Welcome Screen
Like most Adobe Creative Suite applications, Flash Professional will present you with a Welcome screen when the application is initialized, giving you quick access to a number of common tasks. This lesson looks at the options available in the Welcome screen.
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4.13.1 Standards and classification

ICTs depend on myriad standards in order to provide interconnectivity. If this was a computer science course, you would be learning about standard network protocols which enable computers to communicate with each other or with other devices, whether over the internet or from your computer to a network printer. Standards enable us to send email and browse websites without worrying about the underlying mechanisms (until they fail, forcing us to focus on the tool instead of our work).


Author(s): The Open University

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A topology construction from line drawings using a uniform plane subdivision technique
The paper describes an algorithm for constructing the topology from a set of line segments or polylines. The problem appears for example at land-maps that have been drawnby general-purpose drawing packages or captured from blue-prints by digitalisation. The solution comprises two steps; in the first step inconsistencies in the input data aredetected and removed, and in the second step the topology is constructed. The algorithm for topology construction consists of two phases: determination of a
Author(s): Alik, B.

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Welsh Castles
A list of Castles in Wales
Author(s): Oast House Archive

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Speak What We Feel (Not)
Professor Carol Rutter delivers her guest lecture at The Great Shakespeare Debate 2011: 'Speak What We Feel (Not)'.
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The Bacteria Kingdom
This video breaks down the Bacteria Kingdom. It takes the Kingdom and breaks it down into the two domains. It then gives the characteristics of the two domains that fall under the Bacteria Kingdom: Eubacteria and Archaea.This video is in lecture format with an instructor standing in front of a dry erase board.  Run time 02:56.

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