Conic section is the collective name given to the shapes that we obtain by taking different plane slices through a double cone. The shapes that we obtain from these cross-sections are drawn below. It is thought that the Greek mathematician Menaechmus discovered the conic sections around 350 bc.

Cooking With Miranda - Baked Spaghetti
Ten-Year Old budding chef guides us through her grandma's extra special recipe for spaghetti!

Author(s): No creator set

Graphing Linear Equations and Inequalities: Summary of Key Concepts
This module contains the a graphing linear equations and inequalities from Elementary Algebra by Denny Burzynski and Wade Ellis, Jr.

The underlying premise of this course is that we are all experts in different ways, and that our different experiences and understandings are of value. Inclusive education is presented and discussed as under construction, both in educational settings and as a concept. The materials to be found in this course are largely rooted in the social model of disability and human/disability rights frameworks.

This OpenLearn course provides a sample of Level 2 study in Author(s): The Open University

Brandwood, G., Davison, A. and Slaughter, M. (2004) Licensed to Sell: The History and Heritage of the Public House, London, English Heritage.

Wilkinson, A. (2001) Enough Has Been Bulldozed! Save Farnborough, the Cradle of British Aviation, London, SAVE Britain's Heritage.

World Heritage List (2005) ‘The criteria for selection’ (Accessed 27 May
Author(s): The Open University

In many ways the emperor became a figurehead who helped to bind the empire together. The emperor was promoted as larger than life, a man who bordered on the divine. It is worth noting that the text of the Res Gestae from Ankara was found attached to the walls of the temple of Rome and Augustus; it was placed in a religious centre where the emperor was worshipped. The video section on ‘The emperor in the provinces’ also examined several cult buildings which promoted the emperor's na
Author(s): The Open University

The Economist asks: Are we too dependent on big data?
Data has become an invaluable resource for business leaders, politicians and everyone else. But our guest this week, the consultant Christian Madsbjerg, claims that this fixation on numbers ignores what makes us human. Kenneth Cukier finds out more.
Author(s): No creator set

Calculus 134 | 01/14/13
David Pruis' twice-weekly Calculus class at Grand Rapids Community College.
Author(s): No creator set

In today's short but action-packed episode, check out the new Single-File IntelliSense feature, where you can take advantage of VS browsing, navigation, IntelliSense, and more simply by opening your source files in VS! And afterwards, for reals, go check it out for yourself, and let us know if it's as magically awesome as we're hoping it is!

Author(s): Gabriel Ha

I've never quite lost the sense of wonder at the way information can be transmitted with no visible link between the sender and recipient. When I was a child I used to think that sound came through the wire linking my family's radio to the mains electricity supply (I was born before the days of battery-powered transistor radios) and I couldn't understand why my parents referred to it as 'the wireless' – since clearly it wasn't. I now know that the wire simply fed the radio with the electric
Author(s): The Open University

This course explores the management of local knowledge-generating practices with regard to their wider contexts. Although these local practices might be considered in terms of individuals acting and thinking as if they were autonomous, independent agents interacting with other agents, such practices are simultaneously shaped by shared skills and understandings. As Karl Marx pointed out, when the hero of Daniel Defoe's (1660–1731) novel Robinson Crusoe (Defoe, 1994, first published in
Author(s): The Open University

A striking contradiction of the internet revolution is that, although cyberspace allows firms to be located anywhere, they still seem to cluster together in global cities such as New York, London and Sydney (Castells, 2001). Four years after publishing a book proclaiming The Death of Distance, Frances Cairncross noted in the book's second edition that, ‘Economists, most of whom have long ignored or despised economic geography, are now taking a fresh interest in it’ and, after revie
Author(s): The Open University

596 - Why Businesses Are Called Houses. Why We Call It "Black Friday."
Author(s): No creator set

Defining City Regions
The concept of 'City Regions' has been picked up by political leaders in the UK at both a national and local level. The concept has been used as the basis for a number of policy initiatives, but what lies behind the idea of a 'City Region' and what are the implications for governance and local identity if we start to think in these terms. Professor Colin Crouch, Professor of Governance and Public Management at Warwick Business School, has studied City Regions for the OECD. Length: 29 mins
Author(s): No creator set

This course explores the Holocaust, as the destruction of European Jewry is commonly known. The mass killing represented by the Holocaust raises many questions concerning the development of European civilisation during the twentieth century. This course, therefore, covers essential ground if you wish to understand this development.

This OpenLearn course provides a sample of Level 3 study in Author(s): The Open University

 An educational project in Honduras trained local people on the aquaculture of Tilapia. Local residents made their own aquacultures and improved their diet and income.

Author(s): No creator set

## Question 1

Compare the structure of aspirin, 2.8, with that of salicylic acid, 2.7. What similarities and differences can you see?

Author(s): The Open University

African Americans Against the Bomb: Nuclear Weapons, Colonialism, and the Black Freedom Movement
Andrew W. Mellon Foundation Seminar on Violence and Non-Violence Vincent J Intondi on his new book, African Americans Against the Bomb: Nuclear Weapons, Colonialism, and the Black Freedom Movement Learn more about the book here: http://www.sup.org/books/title/?id=23490 Introduction Elaine Scarry Walter M. Cabot Professor of Aesthetics and the General Theory of Value, Harvard University Cosponsored by the Mahindra Humanities Center's Andrew W. Mellon Foundation Seminar on Violence and Non-Vio
Author(s): No creator set

Class 2b - Starting the Venture
The basics and things you'll need to start your company
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## Study another free course

There are more than 800 courses on OpenLearn for you to c
Author(s): The Open University