Stem Cells Breakthrough
This video segment adapted from NOVA scienceNOW tells the story behind one of the most significant scientific breakthroughs in the past decade. Human embryonic stem cells, once thought to be the key to curing countless debilitating diseases, have sparked a decade-long firestorm of ethical and political debate in the United States that has greatly curtailed their use in scientific research and medical therapies. Now a revolutionary method of creating stem cells—without embryos—may pav
Keep on learning There are more than 800 courses on OpenLearn for you to Season 1 – Lesson 27 – Coffee Break Spanish This week Mark and Kara look at dealing with banks and services while travelling. This lesson brings learners to a crucial stage in their language-learning as it concentrates on reusing already learned material and changing individual words in order to expand vocabulary and range of expression. Please note that lesson 27 of Season 1 was originally known as lesson 127 of Coffee Break Spanish. We have renumbered the lessons of each season as lessons 1-40 to 7.4 The impact of technology on society Engineering is apparently driven by the needs of society. The technology that results, in turn, drives other changes in our everyday lives. One of the basic needs identified in Section 2 was for shelter. There are many fine examples of long-surviving structures such as pyramids, aqueducts, bridges, walls, functional buildings, and so on. Remarkably these constructions were completed without the depth of analysis and understanding that is available today (though we don't necessarily know much VECON : Vereniging van leraren in de economisch-maatschappelijke vakken Op deze Nederlandse website vind je examens terug. Er is ook heel wat lesmateriaal beschikbaar. Om deze zaken te kunnen gebruiken, moet je je registreren. Er zijn ook links terug te vinden naar heel wat andere websites in verband met … Duke Medicine Profiles: James Messersmith, PA-C Anansi Goes to Lunch President George Washington, Part IV How to Keep Your Computer Secure Eating to win: activity, diet and weight control 3.2 Congruence The Division Algorithm tells us that, when we divide any integer by a positive integer n, the set of possible remainders is {0, 1, 2, …, n − 1}. Integers which differ by a multiple of n have the same remainder on division by n and are, in this sense, ‘the same’ as each other. We now The Economist asks: Can the liberal west survive? Passive Voice With Present Perfect Tense Keep on learning There are more than 800 courses on OpenLearn for you to c Viewing Gamma Rays (Interactive) God of Antimatter Introduction This free course provides a sample of postgraduate study in Technology http://www.open.ac.uk/ postgraduate/ find/ technology. This course comprises: the transformation process model of operations; a video 5.2 Other transmission media Wires are still used to carry electrical signals over short distances. At the time of writing, for example, most connections between telephones in private houses and the local telephone exchange still use wires. The telephone networks within office buildings are mostly connected with wires, and so are many computer networks (local area networks, LANs) within single buildings. However, all longer-distance communication, between towns, cities or countries, uses either optical fibre or microwave Al 88, Si 12 (wt%), eutectic alloy Learning Outcomes After studying this course you should be able to:
Study another free course
Coming up in this episode:
Get to know Duke Medicine's joint replacement orthopaedics providers.
"Anansí Goes to Lunch" is another story from the series of West African folktales about Anansi, the trickster spider. In this story Anansí is invited to three different parties but realizes that it is not possible to attend all three of the lunches at the same time. He decides to tie a rope around his waist and then gives each of his hosts an end of the rope to tug. (05:40)
Animated biography of the life of President George Washington. This episode shows Washing crossing the Deleware.(1:52)
How to Keep Your Computer Secure - This is a basic tutorial on how to keep your computer secure from viruses and other bugs. It discusses Firewalls, AntiVirus programs, and Antil Spyware, Maleware, Adware programs. Microsoft has a firewall built in-other options are given. You are shown how to download programs from download.com to take care of these programs. (4:12)
~Begins with a commercial~
What should we eat before and after exercise? This free course, Eating to win: activity, diet and weight control, examines the importance of nutrition in physical activity, sport and weight management. The role that physical activity has alongside nutrition in controlling body weight will be discussed, as will considerations for pre-exercise and post-exercise nutrition and hydration.Author(s):
Anne McElvoy explores the future of western liberal ideals. She is joined by former Economist editor Bill Emmott to debate how liberals must change to meet the challenges of their opponents
A teacher explains the how the present perfect tense works in the passive voice: S + has or have + been + past participle. Examples on a whiteboard are given during the lesson.
Study another free course
In this interactive activity adapted from NASA, learn about gamma rays and how astronomers use them to study the universe. Explore the electromagnetic spectrum and investigate how the wavelength, frequency, and energy of a wave are related. Learn how gamma rays interact with matter and how the Fermi telescope works. Look at false-color gamma ray images of supernova remnants, pulsars, Earth, and gamma ray bursts.
Prof. Gerald Gabrielse: Lecture
This sample is a casting alloy of eutectic composition. From the melt a eutectic is formed between aluminium solid solution and virtually pure silicon. Slow solidification produces a very coarse microstructure. The eutectic comprises large plates of silicon in the aluminium matrix. This microstructure displays poor ductility due to the brittleness of large silicon plates. The microstructure is normally refined through either rapid solidification, which lets the silicon phase assume a fibrous fo
