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Excretory System
Excretory system is a passive biological system that removes excess, unnecessary, or dangerous materials from our bodies. (02:02)
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Determining the Moisture Content of a Soil Sample
Introductory soil science practical requiring students to assess the moisture content of a soil sample. Includes explanatory information.
Author(s): Kevin Costello

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Stills of the Polar Visible Aurora from October 22, 1999
Polar Visible Aurora from October 22, 1999
Author(s): Greg Shirah,John Sigwarth

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Skeletal Modeling Dynamic Simulation: The Runner
A study of human gait motion.
Author(s): Andy Acuna,Brian Garner,Clay Anderson,John Cavallo

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TRMM Data Swath Revealing Cloud Interior
This is one of a series of animations created for the TRMM pre-launch package.
Author(s): Chris Kummerow,Greg Shirah

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TRMM Data Swath Close-up View (TRMM Ride)
This is one of a series of animations created for the TRMM pre-launch package.
Author(s): Chris Kummerow,Greg Shirah

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Notting Hill Carnival: a feast for everybody!
Op het einde van deze les kun je iemand met een uitnodiging overtuigen om naar een festival te komen.
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Measurement of Nitrogenase Activity in N2-Fixing Nodules of Soybean
This resource is a detailed manual of protocols and instructional information for carrying out an undergraduate laboratory exercise in plant biology and physiology, including student outlines, instructors notes, and suggested questions for laboratory reports.
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Britain's phone hacking scandal
A full judicial inquiry is needed immediately to clean up British journalism
Author(s): The Economist

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Consumer goods
In the first of a two-part series on Asian consumers, we ask what makes the Middle Kingdom's shoppers tick
Author(s): The Economist

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Thailand's election
Yingluck Shinawatra must keep her word on reconciliation and break it on spending
Author(s): The Economist

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France and Dominique Strauss-Kahn
More extraordinary twists in the DSK affair grip France - and create fresh agonies in the Socialist Party
Author(s): The Economist

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Editor's highlights: July 07th 2011
A selection of stories chosen from this week's issue of The Economist
Author(s): The Economist

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The birth of South Sudan
South Sudan faces the trials of nation building. An expert on Sudan explains the expectations and challenges ahead
Author(s): The Economist

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Europe's crisis takes a bad turn
As Italy wobbles, politicians and central bankers begin a summer of painful negotiations
Author(s): The Economist

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Babbage: July 13th 2011
In this week's programme: the rapid rise of Google+, potential job losses at Cisco and the imminent launch of Apple's OSX Lion
Author(s): The Economist

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Doing business in Auckland
New Zealanders are friendly, but don't try to sneak food across the borders. Between meetings, we recommend exploring beyond the city
Author(s): The Economist

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The week ahead: July 14th 2011
Britain's phone-hacking scandal continues, the results of Europe's bank stress-tests are released and Hillary Clinton visits India
Author(s): The Economist

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Whither the Arab Spring?
Our correspondents on the threat posed by counter-revolution and the role Islamist parties will play in Arab democracy
Author(s): The Economist

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Putting the Country Back on Gold

I have recently completed a study guide to Ludwig von Mises's classic work, The Theory of Money and Credit. (The PDF of the guide is available right now, and the physical book should be ready soon.)

In The Theory
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