Pitch and Frequency
To further their understanding of sound energy, students identify the different pitches and frequencies created by a vibrating ruler and a straw kazoo. They create high- and low-pitch sound waves.
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Double-Angle, Half-Angle, and Reduction Formulas
OpenStax College
In this section, you will: Use double-angle formulas to find exact values. Use double-angle formulas to verify identities. Use reduction formulas to […]

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Ordered film of carbon nanotubes
It is necessary to form a stable dispersion of nanotubes in order to properly integrate them into polymeric systems. This can be achieved by treating them with acid to oxidise the tube surfaces. The tubes will then spontaneously disperse in an aqueous medium. The viscosity of these suspensions is analogous to that of polymers; it increases gradually with concentration up to a critical point (at about 0.7vol%) where entanglement occurs. A solid nanotube film has been formed by filtering the s
Author(s): DoITPoMS, University of Cambridge,Prof A H Windle,

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The Art, the (Social) Science and the Politics of Building State Capability for Implementation
The talk addresses an apparent paradox between development indicators that seem to be improving and measures of institutional quality that are flat or declining
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Study Habits: Six Important Tips
Six important things that students should do to improve their school performance. This three minute video reviews the most important elements that a students need to do each day and is an excellent video to show at the beginning of the school year.
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Lesson 317 – Notícias mais faladas no momento.
Hoje falarei e comentarei notícias que estão “na boca do povo”, ou seja, que todos estão falando e comentando por aqui.

Check out our website, brazilianportuguesepod.com and find out more how we can help you improving your Portuguese!


Author(s): contactus@brazilianportuguesepod.com (contactus@br

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Ryan Wiggins - 2011 Cascades Distinguished Student Award Recipient
In 2011, 13 OSU Cascades students were honored with a Distinguished Student Award. Ryan Wiggins talks about his OSU Cascades experience.
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Dr. Patrick Awuah Jr. explains the importance of ethics at Ashesi University
Dr. Patrick Awuah Jr., recipient of the Elon University Medal for Entrepreneurial Leadership, discusses the importance of ethics to Ghana and to Ashesi University. He also explained three ways that ethics are incorporated as an integral part of an Ashesi education
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Birefringence in a film of polypropylene
The colours in the image are the result of birefringence and relate to the residual stress in the film, following the biaxial stretching process. The uniformity of the colour (with contrast only where an additional thickness of film exists or where wrinkling has resulted in a different apparent thickness) is indicative of both a uniform film thickness and of the uniformity of the drawing process used to make the film. Note that unlike polyethylene, the film has not been permanently strained in
Author(s): DoITPoMS, University of Cambridge,J A Curran, Depa

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Guide to the Microfilmed Records of the Daughters of Erin, Court #9, Pittsburgh, Pa., 1956-1976
This collection contains the minutes of the monthly meetings of the Daughters of Erin, Court #9, Pittsburgh, Pa., 1956-1976.
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Any requests for permission to publish, quote, or reproduce materials from this collection must be submitted in writing to the Assistant University Librarian for Archives and Special Collections. Perm

Rebel families splash into Aisha Gaddafi's pool
Aug. 26 - Libyan opposition supporters bring their families to the luxurious house, complete with swimming pool, once occupied by Muammar Gaddafi's daughter Aisha at his compound in Tripoli. Rough Cut (no reporter narration).
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Locals explore Gaddafi compound
Aug. 26 - Traffic cops returned to Tripoli's streets and locals hopped into Gaddafi family pools as the city began navigating life without the Libyan leader. Deborah Gembara reports.
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Pneumatica : Cursus (NORGREN)
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Deze cursus bevat een summiere uitleg over de cilinders, waarbij voor heel wat afbeeldingen verwezen wordt naar de site www.pneumatica. Daarnaast zijn er 22 oefeningen te vinden.


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Ben je klaar voor de Olympische Spelen?
olympische_spelen.jpg

We zullen er in 2012 niet naast kunnen kijken: Londen organiseert de Olympische zomerspelen en de British Council en de BBC grijpen de gelegenheid aan om een heleboel in de klas bruikbaar materiaal beschikbaar te stellen op een website. Momenteel …


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Jongeren keren het klimaat
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‘Jongeren keren het klimaat!’ is een campagne van GREEN vzw om jongeren uit basis- en secundaire scholen bewust te maken van de klimaatproblematiek. Vijf dagen per jaar daagt GREEN scholen uit! Aan de hand van 5 laagdrempelige acties, …


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Charles Schreyvogel, primary source of Ford's cavalry charges
William Howze
This dissertation demonstrates John Ford’s use of images from a wide range of sources in many of his films. In particular, it examines Ford’s use of images based on the conventions of American […]

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El Nino-La Nina Sea Surface Temperature and Height Anomaly 3D Isometric Morph: December 1997 to Dece
An morph of sea surface temperature and height anomalies in the Pacific between December 1997 and December 1998, from NOAA AVHRR and TOPEX Poseidon
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Scénographies du visible, de l'invu et de l'invisible : introduction / Christian Joachim

Scénographies du visible, de l'invu et de l'invisible : introduction à la première thématique du colloque / Christian Joachim. In "Images & mirages @ nanosciences", colloque international organisé par le Laboratoire Interdisciplinaire Solidarités, Sociétés, Territoires (LISST) de l'Université Toulouse II-Le Mirail, le Centre d'Élaboration de Matériaux et d'Études Structurales (CEMES) rattaché à l'Institut de Physique du CNRS et le Labor
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The Future of Nagorno-Karabakh
Still a controversial topic, Nagorno-Karabakh, according to Pulitzer Center's grantee Will Englund, is a de facto independent state but internationally recognized as part of Azerbaijan. Englund presents different faces of Karabakh while narrating the Karabakhis' struggles and yearning for peace and recognition.
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China's role as saviour of global economy backfires: analyst
Aug. 29 - hina's aggressive stimulus plan in 2008 has merely fuelled inflation, and tightening measures are adding to the country's grey market lending problems, says BNP Paribas.
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