1.6 Impurities in coal Coal rank reflects the maturity of a coal, but another variable is the ratio of combustible organic matter to inorganic impurities found within the coal. As discussed earlier, impurities result mainly from clay minerals washed into the mire prior to its eventual burial. In addition, some impurities are formed from the plant material itself during coalification. These inorganic impurities are non-combustible and therefore leave an inert residue or ash after coal combustion. High-a
Coal rank reflects the maturity of a coal, but another variable is the ratio of combustible organic matter to inorganic impurities found within the coal. As discussed earlier, impurities result mainly from clay minerals washed into the mire prior to its eventual burial. In addition, some impurities are formed from the plant material itself during coalification.
These inorganic impurities are non-combustible and therefore leave an inert residue or ash after coal combustion. High-a
Subtraction with Regrouping
This video demonstrates subtracting three digit numbers with regrouping. The problem is shown on an interactive white board with a narrator explaining each step. (00:57)
My Passion, My Rage
Madison Parker reads her statement on the development of her political identity and her experience as a "white, Christian, upper-middle class, heterosexual, young, American woman," an identity she struggles to take pride in.
Johns Hopkins Astrophysicist Adam Riess wins Nobel Prize
On Tuesday, the Royal Swedish Academy of Sciences recognized Adam Riess, the Krieger-Eisenhower Professor in Physics and Astronomy at Johns Hopkins and a scientist at the Space Telescope Science Institute, for his leadership in the High-z Team's 1998 discovery that the expansion rate of the universe is accelerating, a phenomenon widely attributed to a mysterious, unexplained "dark energy" filling the universe.
Political Identities and Organizing for Social Change
Annie Kersting reads her thoughts on how a political identity is developed over the course of a life, and she reflects on how unique experiences are formative to a person's manner of organizing when acting for social change.
Claudia Octaviano models electricity and oil sectors in Mexico
Though trained as an environmental economist, Claudia Octaviano is currently working towards her PhD in the Engineering Systems Division at MIT. But an economist among engineers isn’t as odd as it sounds; Claudia’s program integrates engineering, social sciences, and policy to address environmental issues.
“The idea within the Engineering Systems Divisions is that these are very complex issues that you won’t be able to solve just by looking at technology, or with just the e
Independent Clause and Dependent Clause - Free English Video by Brightstorm
Clauses are groups of words that contain a subject and a verb. Independent clauses can stand alone while dependent clauses cannot. This video describes how to recognize a dependent clause and add parts to the sentence to make it an independent clause. (3:34)
DigitalVU: WordPress training
Watch WordPress Training with Lacy Tite from University Web Communications. This Oct. 10, 2011, training session for current WordPress users was also open to those interested in learning more about WordPress, one of the university’s two supported content management systems. The event was part of DigitalVU month at Vanderbilt, co-coordinated by Medical Center Web and Creative Services and Universitykeep reading »
TRMM Rainmap for September 1998: North and Central America
Monthly average rainfall over North and Central America for September 1998 as measured by TRMM. High rainfall rates are in red.
Beluga Zen Den
Dive underwater and swim with belugas in this simple yet captivating zen den. (01:02)
"Water Vapor, the Hydrological Cycle, and Climate Change"
Something in the Air: Climate Change, Science and Policy - Radcliffe Institute for Advanced Study "Water Vapor, the Hydrological Cycle, and Climate Change" by Isaac M. Held, Senior Research Scientist, head of Weather and Atmospheric Dynamics Group, Geophysical Fluid Dynamics Laboratory/NOAA (Princeton, NJ); Lecturer with rank of Professor in the Atmospheric and Oceanic Sciences Program, Princeton University
New Directions: East Carolina University
Tomorrow starts here.
This Week @Minnesota: Homecoming 2011
In "This Week @Minnesota" for the week of October 16-22, we take a look at a few of the festivities surrounding Homecoming 2011. We watch a student lip sync competition, flag football championship, parade, pep fest and concert by Atmosphere!
PAC-12 Best of the West Fitness Challenge - OSU
Help Oregon State University win the 2011 Pac-12 Best of the West Fitness Challenge. Sign up and log your physical activity at http://www.facebook.com/Pac12BestoftheWestFitnessChallenge
17th Street Canal
Explore visits the Ninth Ward district of New Orleans, where in August 2005 rising waters blasted through a levee in the 17th Street canal. Approximately 2,000 people were killed and $84 billion of damages were incurred. (5:20)
The Internet publicity market
You can show the results of a study and summarize it in a memo.
With a vast bibliography and repository of published and unpublished literature and media, an online outlet for publication, and a collaborative workspace built on the HUBzero platform for digital scholarship, HABRI Central will be the place to go for human-animal bond research and collaboration when it launches in 2012. The founding partners of HABRI Central are Purdue Veterinary Medicine and Purdue University Libraries. While it is owned by Purdue University and editorially independent, gener
English conference: Sports Writing in the Internet Age
Mary Ullmer, the Sports Editor for the Grand Rapids Press, explains the difficulties of sports writing in today's world.
Effects of Implementing "Health-Check" on Agricultural Enterprises
The reform of the Common Agricultural Policy (CAP) in 2003 and its implementation in Austria from the year 2005 marked a turning point for the local agriculture.
The incentive for agricultural production should rather go out from the agricultral markets than from the politic