3.2.1 Remarks By ‘contains’, we mean that we can find part of the surface that is homeomorphic to a Möbius band. The edge of the Möbius band does not need to correspond to an edge at the surface, so that a surface without boundary can be non-orientable (as we shall shortly see). When seeking Möbius bands in a surface, it can be helpful to look at all possible closed curves on the surface and thicken these into bands. Remember, fro
Lesson 04 - One Minute Luxembourgish
In lesson 04 of One Minute Luxembourgish you will learn how to say that you don't understand something. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Languages at our website - http://www.oneminutelanguages.com. One Minute Luxembourgish is brought to you by the Radio Lingua Network and is ©Copyright 2008.Author(s):
MAS.963 Techno-identity: Who we are and how we perceive ourselves and others (MIT)
The nature of human identity - how we think of ourselves, how we perceive others - is a mutable concept, changing with the rise and fall of religious beliefs, social mores, philosophical theories. Today, we live in a world in which science and technology are among the most powerful forces reshaping our culture - and thus our definitions and perceptions of identity. In this seminar, we will examine the impact of science and technology on identity.
The instructor's course page may be viewed at htt
Space Station Live: Measuring Fluid Shifts on Orbit
NASA Commentator Pat Ryan talks with Dr. Michael Stenger, one of the co-principal investigators of the Fluid Shifts experiment now underway on the International Space Station. Researchers are trying to quantify the amount of fluids that shift to an astronaut’s head and upper body and into and out of cells and blood vessels during an extended period in weightlessness, determine if that increased fluid pressure inside the head and on the back of the eye are responsible for the diminished vision
Aid reaches more remote areas of Nepal
Rescue workers arrive with aid and open roads leading to a remote Himalayan region cut off after the Nepal quake. Paul Chapman reports.
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Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and international news. For over 160 years
9.12 Experimental Molecular Neurobiology (MIT)
Designed for students without previous experience in techniques of cellular and molecular biology, this class teaches basic experimental techniques in cellular and molecular neurobiology. Experimental approaches covered include tissue culture of neuronal cell lines, dissection and culture of brain cells, DNA manipulation, synaptic protein analysis, immunocytochemistry, and fluorescent microscopy.
Dr. Jordan Metzl, "The Exercise Cure" | Talks At Google
As Dr. Jordan Metzl says, "Exercise is medicine." It's the simplest way to keep yourself healthy and happy. Now he puts that philosophy—along with cutting-edge research and a motivational bedside manner—into a groundbreaking book split into three sections. First, an AZ list of maladies that affect quality of life for millions, along with the specific exercise prescriptions that will help fix them—from Type 2 diabetes to depression, from arthritic joints to PMS, from addiction to sleep apne
21M.263 Music Since 1960 (MIT)
This course begins with the premise that the 1960s mark a great dividing point in the history of 20th century Western musical culture, and explores the ways in which various social and artistic concerns of composers, performers, and listeners have evolved since that decade. It focuses on works by classical composers from around the world. Topics include the impact of rock, as it developed during the 1960s - 70s; the concurrent emergence of post serial, neotonal, minimalist, and new age styles; t
Celebrate Armstrong 2014
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Lloyds Building N130015 LLOYDS BUILDING, 1 LIME STREET, LB City of London. General view at twilight.
© Historic England
2 A 4.6 billion-year history Climate change is a natural process of warming and cooling that has occurred all through the Earth's history. Throughout geological time there have been ‘hot-house’ periods and ice ages. In order to understand the current situation, it is necessary to have some sense of context and perspective, from historical and geological time-scales. The document below shows a chart showing a generalised temperature history of the Earth. Click on the link below to see the chart
Khan Academy: Chemistry 1 App for iOS
'Ximarc Studios Inc is proud to bring you Khan Academy Chemistry 1 (videos 1-20). Khan Academy Chemistry allows students to learn Chemistry through various videos which are downloaded directly on your iPhone or iPod touch and in the future to your iPad. Students can watch the video anywhere, anytime, all the time and NEVER be concerned about having access to the internet while you are going through a Khan Academy lesson.Ximarc Studios will continue to bring you great video lessons from the Khan
IPL: Steve Wing "Southern ocean ecosystems"
Professor Steve Wing's research explores the interconnectedness of ocean ecosystems - the physical and chemical processes and how they impact on the food webs, how spatial factors impact on population resilience and so on. This work has been applied with considerable success in the Fiordland area where marine reserves have led to stronger populations across the ecosystem.
Misplaced Phrases
This lesson excerpt tells how to correctly use phrases as modifiers in sentences. The excerpt is very short and provides only one example. (01:17)
6.2 (a) 'Cleaning-up' fossil and nuclear technologies This means mitigating some of the adverse 'environmental' consequences of fossil and nuclear fuel use through the introduction of new, 'clean' technologies that should substantially reduce pollution emissions and health hazards. These include 'supply-side' measures to improve the efficiency with which fossil fuels are converted into electricity in power stations; cleaner and more efficient combustion methods; the increasing use of 'waste' heat in combined heat-and-power schemes; and 'end of p
Tower Poetry 2014: Current Affairs
Runner up to the 2014 Tower Poetry competition, Jessica Matthews, reads her poem 'Current Affairs'.
Money talks: Banks and bear markets
Our correspondents discuss sharp falls in the value of bank stocks and evaluate the parallels with the 2007-08 financial crisis
3.3.2 Citizenship beyond (species) borders Political philosophers are struggling to fit together conventional ideas of citizenship and issues of global environmental change. Most have simply ignored these momentous challenges: they have failed to fully comprehend the implications of our new understanding of humans' revised place in the world. However, our advancing awareness of global environmental changes draws us into a very different sense of shared fate from that of the nation state, or even the global citizen. As Chapter 5
Festival of Britain OP04519 Festival of Britain, South Bank, Lambeth, London. Portrait of Ralph Tubbs, Hugh Casson, James Holland and James Gardner discussing plans and models of the Central Exhibition of the Festival of Britain. Photographed in 1949.
© Historic England
3.2 The agreement to protect the ozone layer After a decade of controversy about the possible effects of CFCs, in 1985 British scientists discovered over the Antarctic a quite unexpected 'hole' in the ozone layer which was the size of the USA. This helped to galvanise the international community into action (though some who took part in the negotiations claim it played little part). By 1987 the first international agreement to control substances damaging to the ozone layer, the Montreal Protocol, was established. Interestingly th
