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Gizmorama - NASA prepares for Moonbuggy Race
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Good Morning,
TGIF! Thanks for taking the time to read Gizmorama this week.
I checked my flower beds yesterday and the spring flowers
are slowly making their return. It seems like it has been
such a long winter this year, the site of spring flowers
will be refreshing. Have a great weekend!
See You Monday,
Erin
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NASA prepares for Moonbuggy Race
The U.S. space agency is transforming part of its Marshall
Space Flight Center into a lunar landscape for the 15th
annual Great Moonbuggy Race. By the end of the month about a
half-mile of cement footpaths at the National Aeronautics and
Space Administration facility will be ready to test the
engineering savvy and physical endurance of about 400 high
school and college students in the April 4-5 event organized
by NASA in Huntsville, Ala. Students from 20 states, Puerto Rico,
Canada, India and Germany, will race lightweight moonbuggies
they designed, based on the lunar rover used during the 1971
Apollo 15 moon mission. The vehicles will encounter 17 course
obstacles that will be built to resemble moon-like ridges,
craters, sandy basins and lava-etched "rilles." Each rover is
piloted by two students: one male, one female. The drivers must
conquer each obstacle without exceeding the race's 15-minute
time limit -- a new rule this year. "That camaraderie is
exciting to see," said Tammy Rowan, manager of Marshall's
Academic Affairs Office. "The race doesn't just pit schools
against one another. It's a shared experience for students
who love math, science and engineering."
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Atomic structure of gold is determined
U.S. scientists have developed a technique that can characterize
the atomic structure of gold and other nanocrystalline materials.
"Without the necessary structural information, our understanding
of nanocrystals has been limited to models that often treat the
surface of a nanocrystal as an extension of a bulk crystalline
surface," said University of Illinois Professor Jian-Min Zuo,
the study's corresponding author. Zuo and colleagues used a
technique they developed called nano-area coherent electron
diffraction. It works by illuminating a single gold nanocrystal
with a coherent electron beam about 40 nanometers in diameter.
The electron beam is scattered by the atoms in the nanocrystal,
resulting in a complicated diffraction pattern made of speckles.
When deciphered, the researchers said the diffraction pattern
describes the structural arrangement and behavior of the atoms,
and the number and lengths of chemical bonds in the nanocrystal.
The study that included Weijie Huang, Laurent Menard, Jing Tao,
Ruoshi Sun and Professor Ralph Nuzzo is to appear in the April
issue of the journal Nature Materials and is available at the
journal's Web site.
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New biofuel production process created
U.S. scientists have developed a process that might be able to
convert brewer's mash and other kinds of plant products into
ethanol or other biofuels. The University of Maryland research
that started with bacteria from the Chesapeake Bay led to the
development of the process by Professors Steve Hutcheson and
Ron Weiner, who subsequently founded an incubator company
called Zymetis. Hutcheson and Weiner said their Zymetis process
can make ethanol and other biofuels from many different types
of plants and plant wastes called cellulosic sources. They
said cellulosic biofuels can be made from non- grain plant
sources such as waste paper, brewing byproducts, leftover
agriculture products such as corncobs and husks, as well as
energy crops such as switchgrass. When fully operational, the
scientists said the technology could potentially lead to the
production of 75 billion gallons a year of carbon-neutral
ethanol. Hutcheson and Weiner won the university's 2007
Office of Technology Commercialization Inventor of the Year
Award for their enzyme system invention.
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