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There are 5 videos in this category and 0 videos in 0 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 14 - 18
1008 Views:
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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 t...hinks 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.
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July 11, 2010 at 07:05 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
983 Views:
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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 ethano...l 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 the conversion from plant matter to fuel in a single step. Closed captioning included. Run time 05:33.
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September 12, 2010 at 03:01 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
949 Views:
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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 inv...olves 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 creating biofuels from plants may actually contribute to global warming rather than help combat it. Run time 03:30.
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October 25, 2010 at 10:40 PM
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Not Right For WatchKnowLearn
Ages: 9 - 18
574 Views:
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New York is testing out a new water scrubber at one of its wastewater treatment plants in Queens. Meet the algal turf scrubber--two 350-foot slides covered in green algae. Water flows down the slides, algae grows naturally, and then helps clean water... that is sent over it. John McLaughlin, Director of Ecological Services for the New York City Department of Environmental Protection (DEP), and Peter May, restoration ecologist for Biohabitats, explain how the scrubber works, and where the harvested algae goes. (2:43)
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December 26, 2011 at 10:54 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
439 Views:
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There has been growing interest in finding 'second generation' alternatives to food crops that "don't grow on arable land and instead can be used specifically for bio fuels," says Professor Rob Martienssen of the Cold Spring Harbor Laboratory in Laur...el Hollow, New York.
One promising candidate is a "superweed" called duckweed, the smallest flowering plant in the world. "We're interested in using or optimizing duckweed for use as a biomass bio fuel based on its ability to grow on waste water and water in places which you would never imagine crops would grow," Martienssen tells Big Think. (03:34)
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March 25, 2012 at 09:07 AM
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