Sinking of the Lusitania
In this clip from the Discovery Channel’s special "Sinking of the Lusitania," learn the world wide reaction to the sinking of the British ship. (02:17)
Rupinder Brar on Relativity, Einstein, and How to Stay Young
Rupinder Brar lectures on the topic of Einstein's special relativity theory and it's explanation of time dilation and simultaneity. The lecture is entitled Relativity, Einstein, the Speed of Light and How to Stay Young.
3.3 Dams To economize on constructional materials and costs, it is desirable to build a dam at a narrow part of a valley so that the dam can be kept as short as possible. The quantity of constructional materials needed to build dams, and their cost, can be enormous. The Aswan High Dam, built during the 1960s, cost £400 million for a 1.2 km dam. Though shorter than the Aswan High Dam, the longest dam in Britain, the Kielder Dam in Northumberland (Author(s):
2.7 Multiple-cause diagrams As a general rule, an event or outcome will have more than one cause. A multiple-cause diagram will enable you to show the causes and the ways in which they are connected. Suppose, for example, that you were asked to explain why a work group was under-performing. You could use a multiple-cause diagram both to help you to construct the explanation and to present it. 2.3 Multiplying powers Powers of ten can be used to investigate what happens when two powers of the same number are multiplied together. For example, consider multiplying 10 by 100: A billion is a thousand million. In terms of powers this is: Valley Forge, 1777 (The American Revolution) 1.6.3 Supporting users and user processes Use of a database involves user processes (either application programs or database tools) which must be developed outside of the database development. In terms of the three-schema architecture we now need to address the development of the external schema. This will define the data accessible to each user process or group of user processes. In reality, most DBMSs, and SQL itself, do not have many facilities to support the explicit definition of the external schema. However, by using built-in q #253: Sedimental journey: Probing climate's buried past to predict our future Economic Update: Economic Change, Economic Disorder 4.1 Introduction The focus of Section 3 was on LANs that use some kind of physical medium (for example, copper wires or fibre-optic cables) to connect together network nodes. In this section we'll be examining wireless networks – that is, networks that transmit data through the air (or space) using radio waves. There's nothing new about wireless: the principles of transmitting information using radio waves were discovered over a century ago. However, using radio waves to provide the transmission links Uses of Radioisotopes Introduction School governors need to be involved in the monitoring and evaluation of primary schools. But what areas should you be monitoring and how can you ensure that monitoring is effective. This course will help you assess these matters and also look at the kind of evidence you should be sourcing, and how that evidence should be evaluated. This OpenLearn course provides a sample of postgraduate study in Author(s): Introduction This course extends the ideas introduced in the course on first-order differential equations to a particular type of second-order differential equation which has a variety of applications. The course assumes that you have previously had a basic grounding in calculus, know something about first-order differential equations and have some familiarity with complex numbers. This OpenLearn course provides a sample of level 2 study in Author(s): The Finance Crisis: Part Five 3.2.1 Try some yourself Use the method outlined in Author(s): Introduction Consciousness is at once the most important and most baffling aspect of the mind. It is the very heart of our existence yet it is extraordinarily difficult to describe and explain. This unit introduces consciousness, and the ‘hard problem’ it presents for a science of the mind. This study unit is an adapted extract from the Open University course AA308 Thought and experience: themes in the philosophy of mind, which is no longer taught by the University. If you want to Introduction Active galaxies provide a prime example of high-energy processes operating in the Universe. This course introduces the evidence for activity from the spectra of some galaxies, and the concept of a compact active galactic nucleus as a unifying model for the observed features of several types of active galaxy. It also develops the key skill of applying arithmetic and simple algebra to solving scientific problems. This OpenLearn course is an adapted extract from the Open University course 3.6 Oil industry in Scotland Photographs can solicit powerful emotional responses and are often used to draw people's attention to issues or to raise awareness of demands. This course takes a look at how one set of photographs, used as part of a particular demand, was created. It looks at the process of producing images by exploring a series of photographs made with the intention of affecting the way a globalised industry is seen and understood. The industry in question is the oil industry based in Aberdeen, on Scotland' Reducing your ecological footprint
When the Continental Army made camp at Valley Forge during the American Revolution, times were tough. The winter was bitter cold, and there was disease and hunger. (01:30)
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OpenStax College
By the end of this section, you will be able to:
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Melody Barnes, Assistant to the President for Domestic Policy at the White House, speaks with Robin Harding, U.S. Economics Editor for the Financial Times, about the strategies behind the Obama administration's policies for economic recovery at The Finance Crisis: Lessons Learned from Canada and the Way Forward conference at the Canadian Embassy in Washington, D.C.
Activity 37
Concerned about your impact on the environment? Interested in learning how to shape a more sustainable future? This album shows you simple ways to adapt your lifestyle and how to think globally. Five video tracks demonstrate how to assess the ‘ecological footprint’ of your household, examine the effects of personal transport on the environment, and explore how your decisions as food consumers are part of a supply chain stretching across Europe and the rest of the world. They feature an energ
