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3.3 Extending the distance scale

Having reviewed some of the properties of galaxies, we are now in a position to return to the question of how we are to develop further our methods of measuring distance.

The various steps taken in determining larger distances from known smaller ones are often called ‘rungs in the distance ladder’. The process of constructing a rung has been:

  1. Find a measurable quantity associated with a class of objects.

  2. Observe how the measura
    Author(s): The Open University

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Discworld author Pratchett dies
British author Terry Pratchett dies of a rare form of Alzheimer's disease at the age of 66. Rough cut (no reporter narration). Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews 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, Reuters
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Sean Stillwell: Opportunistic Park(ing): A Distributed Pedestrian Network
Architecture Final Reviews: Presented by the Architecture Program at California College of the Arts. Filmed at CCA's San Francisco campus April 27--29, 2012, 9 a.m.--7 p.m. Currently, public space is created by limited policy mechanisms that trade public square footage for developer rights. This thesis exploits ulterior means of producing contiguous public space within dense urban fabric of the city without mitigating that density, and while maintaining connectivity with the existing pedestrian
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Tea 4 health
The website for the UK Tea Council presents information about the organisation and tea; history, growing, types of tea, health and nutritional benefits, antioxidants and hydration. There is a business area, which contains a directory of tea related businesses, information on the tea industry and a gallery of images. The Tea Guild section lists their members and their top ten places to drink tea in the UK.
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AidData: tracking development finance
AidData is a partnership between Development Gateway, William & Mary, and Brigham Young University. It seeks to provide researchers with free open access to statistical data about development finance which will enable them to track development aid finance sources and flows worldwide. The site includes a searchable catalogue of data information, information on donors and recipients. There are also links to research reports and other data websites. All types of multilaterial and bilateral aid for
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NOTA DE PRENSA #RockinVega, el festival alternativo al Toro de la Vega, se relanza con más fuerza

• Tordesillas anunció el pasado sábado 15 el toro del Torneo de 2015, llamado “Rompe-suelas”. • En las semanas previas al anuncio, el consistorio tordesillano se puso en contacto con los promotores del proyecto, interesándose por los detalles técnicos del mismo. • En consecuencia, y con vist

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3.2 Gender and young people's mental health

The discussion of eating disorders and schooling in Section 2 suggested that gendered relations of power, both in an institution such as a secondary school and in society at large, could contribute to the development of particular health problems for some groups of young people. The article by Evans et al. (2004) presented
Author(s): The Open University

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The dynamics in the details: An ethnography of food aid, weights and measures in South Sudan.
Darryl Stellmach, University of Oxford, gives a talk for the UBVO seminar series.
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HST.535 Principles and Practice of Tissue Engineering (MIT)
The principles and practice of tissue engineering (and regenerative medicine) are taught by faculty of the Harvard-MIT Division of Health Sciences and Technology (HST) and Tsinghua University, Beijing, China. The principles underlying strategies for employing selected cells, biomaterial scaffolds, soluble regulators or their genes, and mechanical loading and culture conditions, for the regeneration of tissues and organs in vitro and in vivo are addressed. Differentiated cell types and stem cells
Author(s): Spector, Myron,Cui, Fu-Zhai

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

UT News - February 18, 2015
In today's UT News - the theatre department is debuting their production of Shakespeare's Twelfth Night, UT researchers are working to improve health disparities in Lucas County and the University Women's Commission is awarding scholarships.
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Virtual Maths, Cuboid - Excavation quiz1
Interactive simulaton explaining how to calculate cubic capacity of a truck for carrying excavated materials
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Kids Tell the Story
History is in the hands of Junior Interpreters all summer long, as the story of the Revolution expands to include a kid's perspective. Pam Blount tells us how sites involve children in the 18th century and today.
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Fraction Pieces - A Virtual Manipulative
This virtual manipulative can be used to work with fractional parts of a circle or a square. Please wait a few seconds for the Java applet to load. There are instructions to the right side of the manipulative.
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Carnegie Mellon University's Notable Alumni
A selection of notable alumni from across Carnegie Mellon University who have made outstanding contributions to the world and our society. To see more notable alumni and innovations from Carnegie Mellon, check out http://www.cmu.edu/brag
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Virtual Maths, Cylinder Voids - Calculating volume
Interactive simulation with exercises and video demonstrating the use of auger piling and showing how to calculate the volume of cocrete needed to fill the cylindrical voids.
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Energy storage - the missing link
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Site Production Basics (#10)
How do you take those first steps to creating the actual web site. It is easier than you think - borrow from someone else's. this video will take you through simple ways to get started on your web site.  [09:13]
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Why critique research?
Why published research needs to be appraised by readers.
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Ukelele sing-along
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FinalYT
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