Science@Berkeley Lab http://enews.lbl.gov/ Thu, 22 Feb 2007 1:19:37 -0800 Berkeley Lab Science Webzine en-us S@BL Suppositions http://www.lbl.gov/enews/back-issues/2007/Feb/editorial.html new approach to science education.]]> Thu, 22 Feb 2007 1:19:37 -0800 Catching the Heat http://www.lbl.gov/Science-Articles/Archive/sabl/2007/Feb/Seebeck.html S@BL image

It sounds like a thriller, but it's real: The Seebeck Effect could produce clean energy from waste heat by turning temperature differences directly into electricity. Scientists have measured the Seebeck effect in cheap organics, which could overcome the inefficient processes and expensive materials which have prevented practical applications in the past.

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The Fly in 3-D http://www.lbl.gov/Science-Articles/Archive/sabl/2007/Feb/gene-expr.html S@BL image

Two hours after fertilization, a fruit fly's embryo is a hotbed of activity — and a favorite target of researchers studying gene expression and development. Scientists can now image the embryo in 3‑D at cellular resolution, as thousands of cell nuclei move over the surface and express the genes that shape the unfolding organism.

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Channel Tunnel http://www.lbl.gov/Science-Articles/Archive/sabl/2007/Feb/voltage.html S@BL image

To trade nerve impulses, ions move in and out of neurons' membranes through channels equipped with voltage-sensing domains. Channels are controlled by a crucial segment that tunnels through the channel on a tilt, spiraling like a screw.

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Gaming the Genome http://www.lbl.gov/Science-Articles/Archive/sabl/2007/Feb/drosophila.html S@BL image

Biologists can insert DNA at numerous random locations in the fruit fly genome or target specific genes. Methods for manipulating genes are fast maturing; some techniques, like P[acman], can be adapted to many organisms, bringing precision gene engineering a step closer.

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A S@BL Special: Charging Ahead http://www.lbl.gov/Science-Articles/Archive/sabl/2007/Feb/future-batteries-I.html

A two-part special report on Berkeley Lab's participation in the Department of Energy's efforts to develop power sources for the next generation of electric vehicles.

Trial-and-error engineering isn't good enough for the batteries of the future; scientists use computer models to design the best possible battery.

Future transportation batteries must last for years, which means overcoming thermodynamic instability. The first step is to probe battery chemistry on the nanoscale.

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Inspector Detector http://www.lbl.gov/Science-Articles/Archive/sabl/2007/Feb/GRETINA.html

With the delivery of the first germanium-crystal module for GRETINA, what will be the world's most sensitive gamma-ray detector for nuclear science is starting to come together.

]]> Thu, 22 Feb 2007 1:19:37 -0800 Inspector Detector http://www.lbl.gov/Science-Articles/Archive/sabl/2007/Feb/VENUS.html high current, high-charge-state ions. ]]> Thu, 22 Feb 2007 1:19:37 -0800 S@BL Selects http://www.lbl.gov/enews/sabl-selects.html

Need a Science@Berkeley Lab article in a condensed version, ready to print as a single-sheet handout in classrooms or other venues where only hard copy will do? Check out the pdfs on file in S@BL Selects.

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