Learn Italian - Indefinite Article
This segment, which is from a larger video clip, is a short explanation of the use of un, uno, una and un' in Italian. (01:19)
Juan Enriquez wants to Grow Energy
Juan Enriquez challenges our definition of bioenergy. Oil, coal, gas and other hydrocarbons are not chemical but biological products, based on plant matter -- and thus, growable. Our whole approach to fuel, he argues, needs to change. Juan Enriquez thinks and writes about the profound changes that genomics and other life sciences will cause in business, technology, politics and society. This video could also be used with a lesson in agriculture. Run time 18:08.
Ethanol Biofuel
This video segment adapted from NOVA examines ethanol, a cleaner-burning fuel alternative to gasoline, and the efforts to produce it more efficiently. Today, most ethanol in the United States is made from corn kernels. But converting corn into ethanol requires lots of energy as well as corn, which might otherwise be used to feed people and livestock. The video features research efforts to use less valuable plant matter, called cellulosic biomass, and microorganisms that may be able to accomplish
Engineering Biofuels
This video segment adapted from KQED's QUEST profiles the work of Jay Keasling, a synthetic biologist experimenting with ways to produce a cleaner-burning fuel from biological matter, using genetically modified microorganisms. Keasling's approach involves engineering microbes to eat simple sugars found in plant matter and then excrete fuel. The video explains the two techniques that may enable Keasling to accomplish this: metabolic engineering and directed evolution. It also suggests that creati
How to Edit WatchKnow
Here's a carefully edited screencast explaining how to edit Watchknow. This excellent screencast describes: (1) installing the bookmarklet; (2) importing videos with the bookmarklet; (3) editing the directory; and (4) recategorizing videos. This screencast was developed by none other than the original designer of WatchKnow, Dr. Larry Sanger. (08:27)
How to Use WatchKnow
While many have said WatchKnow is easy to use, we think it can't hurt to explain it with a nice screencast. So here you go--how to use WatchKnow, in under four minutes. Covers opening categories; opening video pages; watching and rating videos; drilling down into the Directory; using the age filter; using the search engine to find categories and videos, and to locate where categories are in the Directory; getting an account; how educational professionals should sign up for an account; and My
Tips On Categorizing Videos on WatchKnow.org
This WatchKnow video tutorial (a screencast) explains how to fix common problems with categorizing videos and editing the Directory. Topics include: (1) unsorted videos; (2) using too borad of a category; (3) the category you need doesn't exist yet; (4) too many videos in a category; (5) how to deal with multi-part videos; (6) duplicate categories; (7) specialized category not filed "deeply" enough; (8) category names not in Title Case. For additional information on editing
Southern California False Color Time Lapse from SeaWiFS
Transitions between relatively cloud free scenes of Southern California, using true color land and clouds with false color-chlorophyll water images, all from SeaWiFS
Undergraduate research opportunities in Biomedical Engineering at the University of Memphis.
Undergrads are working on cutting edge sensors to detect potassium levels in the body at the University of Memphis' Department of Biomedical Engineering.
Skateboard Disaster
Students examine collisions between two skateboards with different masses to learn about conservation of momentum in collisions.
The three pillars of Colombia's recent progress [Audio]
Speaker(s): Álvaro Uribe Vélez | Álvaro Uribe Vélez is the former President of Colombia, holding the office from 2002 to 2010. Mr. Uribe has a Law Degree from the Universidad de Antioquia (Colombia), and a post-graduate degree in Management and Administration from Harvard University. From 1998 to 1999 after being awarded the Simon Bolivar fellowship by the British Council in Bogotá, he worked as an associate professor at Oxford University. Mr Uribe began his political career in 1977 as Secr
Polar Lander Landing Site (Rect. Box) (False Color)
Mars global topography view rotating and zooming into Polar Lander landing site
Five German Phrases to Know When Visiting a Palace
Here are 5 German phrases which are useful when visiting a palace: How much is a ticket? - Wie viel kostet eine Eintrittskarte?, When do you close? - Wann schließen Sie?, When do you open? - Wann öffnen Sie öffnen?, Is there a tour? - Gibt es eine Fürung? and Who lived here? - Wer lebte hier? (01:10)
Brief naar een ziek persoon: "Une lettre de Julia"
Op het einde van deze les kun je: Een brief schrijven aan een zieke vriend/in met enkele nuttige tips om snel te genezen. Bovendien worden enkele werkwoorden herhaald in de vervoeging in tegenwoordige tijd.
148: Leadership: Are you connecting and collaborating?
New research shows that unless you venture beyond your corporate walls, you’ll fall behind the competition.
STS-135 Mission Overview
With the final flight of space shuttle Atlantis and its crew of four astronauts, the space shuttle era comes to a close, and America and the world bids a final farewell to a sleek and one-of-a-kind ship that has helped history unfold in low Earth orbit.
2.1 The significance of geography as a subject It has been argued that geography ‘has been hijacked by environmentalists’. Following the publication of his original article, ‘Constructing a value map’ (see under the link below), Alex Standish (a former geography teacher) appeared on the Radio 4 Today programme to discuss this topic. Listen to the interview again and read the transcript again by clicking on the link below. Read Alex Standish's 'Constructing a value map' by clicking 'view document' below.
1.1 Chasms and great divides: can we imagine a world without geography? Many school systems around the world do not have geography with the status of a separate subject. Schools in England and Wales are different. Here, geography is a national curriculum subject (5–14 years) and the former Minister for Schools (Stephen Twigg) has asserted the subject's importance in several speeches in 2004. For example, he says: ‘The unique contribution of geography is preparing young people Public Diplomacy - Steps to the Future [Audio] Russia's Policy Towards Europe: aggressive retrenchment? [Audio]
Speaker(s): Lord Triesman | Lord David Triesman of Tottenham will discuss the role that public diplomacy plays in the achievement of the government's international objectives. As chair of the Public Diplomacy Board, he will describe the approach that has been developed as a result of Lord Carter's 2005 Review of Public Diplomacy, with a primary focus on engaging with foreign public audiences.
Speaker(s): Marie Mendras | Russia has recovered its self-confidence under Vladimir Putin. But instead of becoming more comfortable with Europe, Russia is tensing up and choosing an aggressive stand-off. Why?
