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Helium Is Lighter than Air Using Bubbles Demonstration
Demonstrating that helium is lighter than air with bubbles that rise. Watch David Richardson from the Institute of Physics demonstrate these fascinating, yet simple physics experiments that you can replicate in class. (1:30)
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1 The politics of racial violence in Britain

Paul Gordon presents a series of views about the politics of racial violence in Britain. The audio programme was recorded in 1995.

Participants in the audio programme were:

  • Paul Gordon member of The Runnymede Trust (race relations organisation);

  • Satnam Virdee researcher at the Policy Studies Institute;

  • Suresh Grover;

  • Barnor Hesse.

Author(s): The Open University

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Will Walmart’s Wage Increase Pay Off?
Walmart's modest wage increase may be a smart way to keep the company's options open regarding future raises, but it may not sufficiently inspire workers, according to Wharton's Adam Cobb.
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3 Peter, Roger, Rachel, Jenny and Veera

Figure 2
Author(s): The Open University

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5.1 The medical background

Blood pressure is normally tightly controlled in the face of large variations in blood flow required by activities such as vigorous exercise. The diameter of the blood vessels is under the influence of the so-called sympathetic nervous system. Impulses from the brain stimulate the release of a chemical substance, noradrenaline (1), from the nerve-endings close to the vessel walls. The noradrenaline then diffuses to the blood vessel wall, where it interacts with a specific molecular sit
Author(s): The Open University

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An optimization method of the facility location by genetic algorithm
In planning of community-facilities, it is important to decide the facility location to provide the effective service for residents. The behavior of residents using the facility and the evaluation methods of the location have been studied. But, finding the optimum location is very hard in actual planning because the volume of calculation depends on the number of feasible locating points of facilities. To conquer the difficulty of searching the optimum location, we propose an optimization method
Author(s): Aoke, Yoshitsugu and Muraoka, Naoto

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1.2.3 Stage 1: Preparation

Numbers and diagrams are highly abstract and condensed summaries of the world. They require a degree of mental effort to bridge the gap between them and the aspects of the ‘real’ world they stand for. Approach them slowly and with care, allowing yourself time to get the feel of what you are looking at. Don't assume you already know what you are looking at.


Author(s): The Open University

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21L.703 Studies in Drama: Stoppard and Churchill (MIT)
What is the interplay between an event and its "frames"? What is special and distinctive about stage events? How and why do contemporary dramatists turn back in time for their settings, models, and materials? How do they play with this material to create performance pieces of importance and delight for modern audiences? How do they create distinct, fresh perspectives using the stage in an era of mass and multi-media? What is the implied audience for these plays, and how does that clash or coinci
Author(s): Henderson, Diana

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Virtual Maths - Numbers, 2D Triangle simulation tool
Diagram and formulas for are and volume of 2D shapes
Author(s): Leeds Metropolitan University

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http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

6.1 Introduction

As a student, you're likely to engage in a variety of writing tasks. You'll almost certainly handle significant amounts of text and, depending on your course, perhaps also numbers or diagrams.

This section looks at the different way that you write using a computer, and also provides some referencing advice.


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Environmental Apocalypse and Christian Hope
Dr Jonathan Moo: Course
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18.369 Mathematical Methods in Nanophotonics (MIT)
Find out what solid-state physics has brought to Electromagnetism in the last 20 years. This course surveys the physics and mathematics of nanophotonics—electromagnetic waves in media structured on the scale of the wavelength. Topics include computational methods combined with high-level algebraic techniques borrowed from solid-state quantum mechanics: linear algebra and eigensystems, group theory, Bloch's theorem and conservation laws, perturbation methods, and coupled-mode theories, to u
Author(s): Johnson, Steven G.

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5.5 Nurses, district nurses and midwives

While access to GPs and outpatient services was growing, access to nursing care was expanding in some sectors and declining in others. The numbers of trained professional nurses who were employed in wealthy households to care for seriously ill family members fell in the first decades of the twentieth century. These nurses stayed in the patient's home, carrying out the doctor's instructions, monitoring the patient's condition and providing general care – making beds, bathing the patient, giv
Author(s): The Open University

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MAS.963 Out of Context: A Course on Computer Systems That Adapt To, and Learn From, Context (MIT)
Increasingly, we are realizing that to make computer systems more intelligent and responsive to users, we will have to make them more sensitive to context. Traditional hardware and software design overlooks context because it conceptualizes systems as input-output functions. Systems take input explicitly given to them by a human, act upon that input alone and produce explicit output. But this view is too restrictive. Smart computers, intelligent agent software, and digital devices of the future
Author(s): Lieberman, Henry

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2015 MIT Excellence Awards + Collier Medal Ceremony
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La diffusion dans le contexte du Web social (Module 8.1.3) (Vidéo)

MOOC “Création, publication et partage sur Internet” : cours en ligne délivré du 5 mai 2014 au 13 juillet 2014 sur la plateforme FUN-MOOC.

Semaine 8 : Diffuser un document : pertinence et adaptation
Séquence 1 : Diffuser un document à l'ère du numérique
Cours 3 : La diffusion dans le contexte ...
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Is Cap-and-Trade or Carbon Tax Better for Business?
Emissions regulation is fraught with uncertainty owing to the complexity of the business environment.
Author(s): Luk Van Wassenhove, INSEAD Professor of Technology

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3.13.1 General

OU Knowledge Network, ‘Guidelines for describing visual teaching material’ http://kn.open.ac.uk/ public/ index.cfm?wpid=2709

US National Public Website on Assistive Technology


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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to choose from on a range of subjects. 

Find out more
Author(s): The Open University

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7.1 Introduction

This section continues with the theme of networked devices by looking at a system of electronic tagging known as Radio Frequency Identity (RFID). In this system, an electronic tag is attached to an object (for example, the pin described in the The Road Ahead extract in the previous section) and an RFID reader is used to interrogate the tag wirelessly and receive information stored on it. We are using the word 'interrogate' here because the reader sends out a signal and the tag responds
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