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Best regards
Zmags
IN ThIs IssuE:
A Guide to Sustainability • A Planet Hunter
• A Nicotine AddictionVolumE lXXIII, NumbEr 3, summEr 2010
California Institute of Technology
on the cover
the dome of the 200-inch hale telescope on Palomar
Mountain on a summer evening. Just to the left of the dome,
you can see the center of the Milky Way.
an eel’s wake
A simulated eel swims by, leaving behind its wake. the blue wisps represent Lagrangian
coherent structures, which are boundaries that separate different types of flow. In this
case, the structures divide the swirling vortices from the rest of the fluid. these structures
are important not only in understanding how sea creatures propel themselves, but also in
understanding other flu
IN ThIs IssuE: A Guide to Sustainability • A Plan
Volume lXXIII, number 3, summer 2010 2 rando
random Walk a universe of astronomical data L
Left: The exponential rise in information is chan
tolerating a fetus Your immune system recognizes
Right: Looking kind of like a bathtub o
first steps for
t cells make a commitment When does a cell choo
Associate Professor of Aeronautics a
edges that the experience can be a bit bitterswee
Sustainable Energy—Without the Hot Air
MacKay at the Houses of Parliament with the most
Above: Plotting population density versus per- pe
Courtesy of SunPower Corporation
Right: In Japan, caped cru- saders Tankman and
In general, you can reduce the heat loss from you
couple of decades, and clean coal is still at the
Discovering New Worlds In
Left: John Johnson in front of the 200-
To learn more and to watch a video demonstrating
An artist’s rendering of a ga
Once we find more planets like our own, it’ll furt
An artistic rendering of a so-called hot Jupiter
Addicted to Nicotine
By Michael Torrice two decades. (See “Smoke Gets
Above: Dennis Dougherty (left), the Hoag Pro- fes
out of the π systems. With each loss of charge, t
Below: Grad student Nyssa Puskar and the OpusXpre
“The receptor has 3,000 amino acids, but by chang
cells within the midbrain to slowly die off.) Whe
in memoriam Left: Andrew Lange, Frances Arnold,
A youthful-looking Lange in his dorm room on the
Although the CMB varia- tions are faint, t
said, and codified them as “Dave’s Rules” for a me
A spiderweb bolometer, with a dime for scale. The
hans w. liepmann 1914-2009 Hans Wolfgang Liepman
obituaries Applied Mathematics, Emeritus. “They l
edwin s. munger 1921-2010 Edwin S. Munger, profe
On Fact and Fraud: Cautionary Tales from the Fron
Letters
Engineering & Science welcomes letters. Send corr
California Institute of Technology Pasadena, Cali