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4.2 Exercises from video

Here are some questions that were explored in the video. You may want to provide your thoughts and considerations before looking at the comments. 

Activity 8: exercises from the video

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2.1 Differences between accuracy and precision

Accuracy is a measure of how close a result is to the true value. Precision is a measure of how repeatable the result is. For instance, a group of three friends tried the shooting gallery at a fair and their targets are shown in Figure 6. The first person was an expert marksman, but they were using a rifle with sigh
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1.3.8 Separation from the physical body

Very common is the experience of floating, sometimes on the ceiling, looking down on the body – a sense that the essential part of the person has separated from the physical body. In Michael Sabom’s survey of near-death experiences among non-surgical cases everyone had this sensation, but other studies indicate it is not universal. One woman recorded these feelings in a poem.

Hovering beneath the ceiling, I looked down

Upon a body,
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1.1 The growth of malware

The figures below show how the problem of malware has increased over the last 30 years.

1974First self-replicating code (Xerox)
1982First virus on the Apple platform
1984First conference papers on viruses presented
1986First recorded virus infection on the PC
19
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Edgar de Santo

Actividad 10

En esta actividad va a oír a Edgar de Santo hablar de su propia obra.

1 Antes de escuchar el texto mire las siguientes ilustraciones y conteste las preguntas:


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Conclusion

Session 1

Scattering is a process in which incident particles interact with a target and are changed in nature, number, speed or direction of motion as a result. Tunnelling is a quantum phenomenon in which particles that are incident on a classically impenetrable barrier are able to pass through the barrier and e
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Lesson 01 - One Minute Romanian
In lesson 1 of One Minute Romanian you will learn how to say 'hello' and 'goodbye' in Romanian. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Romanian at our website - http://www.oneminutelanguages.com.Author(s): No creator set

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4.4 Reducing nutrient availability

Once nutrients are in an ecosystem, it is usually much harder and more expensive to remove them than tackle the eutrophication at source. The main methods available are:

  • precipitation (e.g. treatment with a solution of aluminium or ferrous salt to precipitate phosphates);

  • removal of nutrient-enriched sediments, for example by mud pumping; and

  • removal of biomass (e.g. harvesting of common reed) and using it for thatching or
    Author(s): The Open University

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The Work of Music: Music and Psychology
A talk given at Wolfson College as part of a lecture series entitled "The Work of Music". Eric Clarke is Professor of Music at the Music Faculty, University of Oxford and Professorial Fellow at Wadham College, Oxford.
Author(s): Eric Clarke

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Rights not set

What Happens When Galaxies Collide?
Dr. Varoujan Gorjian takes us inside galactic collisions in this "Ask an Astronomer" video. (01:54)
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3.4 Accessible text

Described image
Figure 16 The same text written in Sans-
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2 Pressure for change

Bedford Mencap was founded in 1955, as a branch of the National Association for Parents of Backward Children. It provides services for its members, such as the Welfare Visitors Scheme, and also campaigns for change at national and local levels. When the branch was founded there was no provision for families other than the advice to put their child into a mental handicap hospital. Now, partly due to the efforts of Mencap, there is far more on offer. However, you'll shortly be hearing that whil
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3.063 Polymer Physics (MIT)
This course presents the mechanical, optical, and transport properties of polymers with respect to the underlying physics and physical chemistry of polymers in melt, solution, and solid state. Topics include conformation and molecular dimensions of polymer chains in solutions, melts, blends, and block copolymers; an examination of the structure of glassy, crystalline, and rubbery elastic states of polymers; thermodynamics of polymer solutions, blends, crystallization; liquid crystallinity, micro
Author(s): Thomas, Edwin (Ned)

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2.3.3 Statistical mechanics

You saw earlier that very strong claims were made for Newtonian mechanics. Many regarded it as a basic framework that would underlie all scientific explanations. It is therefore natural to ask about the relationship between Newtonian mechanics and thermodynamics:

  • Do they contradict one another?

  • Are they separate aspects of the truth?

  • Can thermodynamics be derived from Newtonian mechanics?

These are not easy
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Introduction

Scientists throughout the world are increasingly interested in the relationship between science and society. Part of their concern is with the social responsibilities scientists have in relation to broader public interests. That raises important issues to do with the ethical and social dimension of scientists' work and how scientists explain – and perhaps justify – their work to the wider public. Indeed, no scientist today is locked within an ‘ivory tower’ of his or her making – sci
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Best Beginner Salsa Dance Lesson
This demonstration shows an extended basic Salsa step.(It is demonstrated from different angles. 6:54)
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TALAT Lecture 2401: Fatigue Behaviour and Analysis
This lecture explains why, when and where fatigue problems may arise and the special significance to aluminium as structural material; it helps to understand the effects of material and loading parameters on fatigue; to appreciate the statistical nature of fatigue and its importance in data analysis, evaluation and use; it shows how to estimate fatigue life under service conditions of time-dependent, variable amplitude loading; how to estimate stresses acting in notches and welds with conceptual
Author(s): TALAT,Dimitris Kosteas, Technische Universität MÃ

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1.018J Ecology I: The Earth System (MIT)
We will cover fundamentals of ecology, considering Earth as an integrated dynamic system. Topics include coevolution of the biosphere, geosphere, atmosphere and oceans; photosynthesis and respiration; the hydrologic, carbon and nitrogen cycles. We will examine the flow of energy and materials through ecosystems; regulation of the distribution and abundance of organisms; structure and function of ecosystems, including evolution and natural selection; metabolic diversity; productivity; trophic dyn
Author(s): DeLong, Edward,Chisholm, Penny

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Objectives for Section 3

After studying this section you should be able to do the following.

  • Recognise and use the terminology: disjoint union; power set (of a set); representation (of a data abstraction).

  • Use and interpret the notation:

    • X Author(s): The Open University

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3 Patterns of inheritance

We can trace the inheritance of characters in animals and plants by following the phenotype from generation to generation, in breeding experiments. We will describe work with maize (Zea mays), alternatively called corn (sweetcorn, or corn on the cob), which occurs throughout the world as an extremely important commercial crop plant, and which is used extensively in genetic research. We can also study the inheritance of characters at the level of the genotype. In this section we will ju
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