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Fe, C 2, Mn 0.7 (wt%) steel, quenched, producing martensite and cracking
This steel was quenched from the austenite phase field too rapidly for carbon to diffuse out and form cementite. This resulted in the formation of the brittle martensite phase. This phase is unable to accommodate volume changes plastically and may therefore fail, nucleating cracks as seen in this sample. The different colours in the micrograph are an artefact of the etching process.
Author(s): DoITPoMS, University of Cambridge,Dr R F Cochrane,

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Sacred Calendar Ramadan
Mr Shujahat Aslam, an imam, discusses the Muslim holy month of Ramadan with Dr Jon Hoover, an expert in Islamic Studies. He describes what happens during the time, and what it means to those who celebrate it.
Author(s): No creator set

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North Texas Earthquakes Study
SMU scientists are studying the cause of a recent series of earthquakes in North Texas. They hosted media on Feb. 7, 2014, to explain the study. The primary research goal will be to conduct the data analysis needed to improve identification of earthquake location and characterize the size, mechanisms and accelerations associated with the events. Learn more at www.smu.edu/earthquakestudy
Author(s): No creator set

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Dividing Juice with Curious George
The children have to figure out a way to divide three bottles of juice evenly between four children.  They use a measuring cup to pour the juice and divide by four.  This video could be used for a lesson on division or a lesson on measuring.
Author(s): No creator set

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Interfacial Control in OPV Devices
By: icamp2012school Dana Olson, National Renewable Energy Laboratory
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Hamas says Israeli soldier captured
Celebrations ring out across Gaza after Hamas claims to have captured an Israeli soldier. Vanessa Johnston reports. 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 has mainta
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Digging for Themes in TRAC and What to Expect from PEW and Census Data
Introduction by Laura Wides-Muñoz, immigration reporter, The Associated Press David Burnham, investigative reporter, co-director and co-founder, Transactional Records Access Clearinghouse (TRAC) Dianne Solás, senior writer, The Dallas Morning News Recorded on October 26, 2013, during an intensive training workshop on immigration, the economy and U.S. law hosted by the Nieman Foundation for Journalism at Harvard University with generous support from the John D. and Catherine T. MacArthur Fou
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Kinecting to Dinos

Today's inspirational project, highlighted by Rob Wolf, shows a pretty unique real-world implementation of the Kinect. And one that's really pretty cool. Like the Rob says, who doesn't like dino's, especially Kinect powered ones!

#ICreatedThis: Kinect-powered dinosaurs

Author(s): Greg Duncan

Academics' online presence guidelines: A four step guide to taking control of your visibility

Authors: 
Sarah Goodier, Laura Czerniewicz