Music in Code
Today, listening to music is easy - we have CDs, MP3s, radio, television and the internet. But around a hundred years ago life was very different - either you had to play music yourself or have someone else play it for you. The 15 video tracks in this album demonstrate various ways to play music by mechanical means, with the ingenious use of levers, pegs, cylinders or paper rolls, and explain the principles used to create and control these music-making machines. This material forms part of TA212
Introduction The fascinating phenomenon of superconductivity and its potential applications have attracted the attention of scientists, engineers and businessmen. Intense research has taken place to discover new superconductors, to understand the physics that underlies the properties of superconductors, and to develop new applications for these materials. In this course you will read about the history of superconductors, taking a brief look at their properties. You will also learn about modelling the prop
Introduction This course contains material that is essential to learning about music technology. Here you will explore the concept of sound and be introduced to the physics behind travelling pressure waves as the physical manifestation of sound. You will also learn about the subjective perception of pitch and loudness, in particular their relationship to frequency and amplitude. This OpenLearn course provides a sample of Level 2 study in Technology Author(s):
3.2 Sub-state forms of nationalism The advancement of democracy in contemporary Western nation-states and the intensification of globalisation processes have encouraged the re-emergence of nationalist movements representing oppressed or silenced nations that demand the right to self-determination. In the case of ethnic groups formed by people of immigrant origin, democracy has provided them with the tools to pursue the right to develop and practice their indigenous culture and language alongside those of the host country. One
3.3 Thermal stresses When the temperature of an object increases (say, by ΔT) it expands. According to the linear model of thermal expansion the length increase is described by What if there is a temperature change, but some constraint prevents the proper thermal size
3.2.4 Functional and team roles When individuals are being selected for membership of a team, the choice is usually made on the basis of task-related issues, such as their prior skills, knowledge, and experience. However, team effectiveness is equally dependent on the personal qualities and attributes of individual team members. It is just as important to select for these as well. When we work with other people in a group or team we each bring two types of role to that relationship. The first, and more obvious, is our
3.2.2 Group size Another significant feature of a work group is its size. To be effective it should be neither too large nor too small. As membership increases there is a trade-off between increased collective expertise and decreased involvement and satisfaction of individual members. A very small group may not have the range of skills it requires to function well. The optimum size depends partly on the group's purpose. A group for information sharing or decision making may need to be larger than one for prob
5.5 Other forms of diabetes By far the three most common types of diabetes are Type 1, Type 2 and gestational. There are other forms of diabetes but we will not be covering them in any more detail. These are forms due to: disease of the pancreas (pancreatitis) an excess of hormones that increase blood glucose levels, e.g. excess growth hormone drugs, for example, steroid therapy, which tend to oppose the action of insulin abnorm
2.3.6 'Horses for courses' Different team structures have different advantages and disadvantages. A structure may fit a particular task in one organisation better than another. On the next page, Table 1 sets out the strengths and weaknesses of different team structures. 2.3.5 Mixed structures Teams often have mixed structures: some members may be employed to work full time on the project and be fully responsible to the project manager. Project managers themselves are usually employed full time. others may work part time, and be responsible to the project manager only during their time on the project. For example, internal staff may well work on several projects at the same time. Alternatively, an external consultant working o Appendix 2 Acronyms 4.2 Fibre in the core network All new trunk transmission – that is, transmission between telephone exchanges – is now over optical fibre. Mostly it uses either PDH or SDH links. Year by year the data rates have increased, so that at the time of writing STM-64 products are available commercially. 3.3 Optical amplifiers Figure 22 shows in outline one possible structure for an Erbium-doped fibre amplifier (EDFA). 5.7 The story so far In Act 1 of Landscape with Weapon, Dan, the dentist, has been disturbed by the defence project that his brother is working on. Dan, however, is a fairly mercenary individual, so he feels that having had the idea, Ned should aim for a good return. The company is keen to exploit Ned's work, but Ned has resisted handing over the IP for his invention because he wants to control who gets access to the weapon system that his work has enabled. In this Act Ned says weapons are empirical, 5.3 Ethics and ethos: ‘does mum know?’ In Act 1 we are presented with a fairly naïve Ned, who initially believes himself to be in control. We discover he is very proud of his intellectual achievements and less concerned with money. He explains his inventions and, when he does so, he finds analogies that highlight the aesthetics of what he is designing. At a crucial point in the conversation, his brother Dan asks: ‘does mum know?’ This is a really significant point in the play because it draws in another relationship and, as I 5.1 Introduction In this section I want to introduce Joe Penhall's play Landscape with Weapon. Having read the play several times, I must stress that it is a text that is particularly rich in ethical issues. These issues, however, are presented in a very down-to-earth way, in a very lively dialogue. I think the lesson from this is that you do not need to be in any kind of ‘formal’ situation to engage with ethics. Everyday conversation is littered with references and arguments about ethical matters, 4.7 The story so far This section looked at the play Last Call. The play is very rich in ethical issues, and one of the most interesting points that are made is that, whilst there are many ‘big’ ethical questions worthy of discussion and investigation, it seems to be in the everyday, routine conversations and dealings of people that ethical questions get to be asked and answered, even if this is not clearly recognised. A major ethical issue tackled in the play is loyalty: giving preference in som Introducing ethics in Information and Computer Sciences Acknowledgements Except for third party materials and otherwise stated (see terms and conditions), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence Grateful acknowledgement is made to the following sources for permission to reproduce materia 7.1 The engineer and society Section 2 outlined some of the needs for engineering. Society relies on engineers to create solutions to the problems involved in meeting those needs. This is a good time to pause and point out that inevitably, in return for all this fun and power, engineers have a responsibility to society. The people who employ our services, directly or indirectly, have to have an assurance that we are working within certain social, safety and ethical boundaries. Particularly given the increasing tren
Table 1 Strengths and weaknesses of different structures for project teams
APC angle-polished convex (connector) ASE amplified spontaneous emission ASK amplitude shift keying cw continuous wave DSF dispersion-shifted fibre DWDM dense wavelength division multiplexing EDFA erbium-doped fibr
SAQ 12
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Although ethics is often viewed as an academic specialism or an add-on to training programmes in technology and science, it is in fact an area of the utmost relevance to professionals and, indeed, everyone. This free course, Introducing ethics in Information and Computer Sciences, draws upon examples taken from dialogues, plays and the media to discuss ethics and ethical issues within the context of Information and Computer Sciences. The course explores the importance of language and the role of
