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The folks at the Canadian Institute for
Advanced Research’s Quantum Materials
program like to point out that the science-fiction
element in the hit movie “Superman
Returns” does contain some truth:
that crystal-growing can produce some
dramatic outcomes. In the film, archvillain
Lex Luthor swipes crystals from the Man
of Steel’s Fortress of Solitude
and grows a continent with them. The fact
is the institute’s program has used
crystallography to create some very stunning
new materials. Quantum materials are substances
subjected to extreme temperatures and
circumstances, resulting in new and unusual
phenomena at the subatomic level. Electrons
in quantum materials behave in ways contrary
to traditional science. “Our researchers
have created crystals with bizarre new
qualities,” says program director
Louis Taillefer, including high-temperature
superconductivity, strange phase transitions,
odd forms of magnetism and new physical
properties. A superconductor is a material
that conducts electricity with no resistance,
but it’s a phenomenon that was thought
to occur in harshly low temperatures of
-200 C. But copper oxide works as a superconductor
at a much higher temperature. The properties
of quantum materials may help improve
the performance of wireless devices and
magnetic imaging tools. And wouldn’t
that be super? —Thomas K. Grose
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Can
computers read minds? Yes, say researchers
at Cambridge University and MIT. We’re
not talking about cyberpsychics or chip-assisted
crystal balls but computers that do what
we humans do subconsciously: infer from
facial expressions and head gestures what
people are feeling. Using a video camera
to scan users’ faces, a computer
at Cambridge’s Computer Laboratory
can in real time discern whether they
agree or disagree with what they’re
seeing on the screen—if they’re
engaged or bored, comprehending or confused.
Sadness, excitement, surprise and anger
are some of the other feelings it can
pick up. The computer studied 24 different
facial features, from flared nostrils
to changes in the corners of the mouth.
The computer was shown 100 film clips
that featured faces—including actors
and nonactors—exhibiting a range
of emotions. It was able to correctly
identify the feelings of the actors 90
percent of the time and of the nonactors,
65 percent of the time. When a panel of
20 humans was shown the same clips, only
6 percent of the panelists scored as high
or higher than the computer. The technology
has life-saving capabilities, says Cambridge’s
Peter Robinson, who developed the software
with Rana el Kaliouby of MIT’s Media
Lab. Robinson is working with a major
auto manufacturer on a dashboard computer
that could alert drivers when they’re
drowsy or distracted. Sounds like a high-tech
backseat driver. —TG
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This fall, for the first time, a full-size,
fully furnished wood-frame townhouse is
going to be subjected to a shaking akin
to a major earthquake. The simulated quake
will take place at the Structural Engineering
and Earthquake Simulation Laboratory at
the State University of New York-Buffalo.
It’s the only American simulation
lab big enough to accommodate the three-bedroom,
two-story structure, which weighs 73,000
lbs. The house has been undergoing increasing
levels of simulated seismic rattling on
the lab’s twin, movable shake tables.
The final tests in November will mimic
the kind of quake that hits once every
2,500 years, like the one in 1994 that
devastated Northridge, Calif. In that
quake, 24 of the 25 deaths occurred in
wood structures. In the U.S., wood is
the dominant building frame material used
for residential construction. But most
civil engineering students aren’t
required to study wood design, and little
is known about how well wooden buildings
withstand quakes. “We want to revolutionize
the building of wood structures for seismic
performance,” explains Andre Filiatrault,
a professor of civil, structural and environmental
engineering at Buffalo. The test house
is outfitted with 250 sensors and a dozen
video cameras that will give researchers
detailed information. Researchers know
the test house will be badly damaged.
Hope it’s insured. –TG
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TOKYO—While richer countries like
Japan and South Korea race to gird their
broadband infrastructures and devise expensive
applications, less-affluent countries
are also leaping into the digital era
with formidable speed—via their
cell phones. India, says Infosys Technologies
CEO Nandan Nilekani, illustrates how mobile
technology is enabling the world’s
poorest citizens to “leapfrog”
over the fixed-line era. India is adding
mobile users at a white-hot rate of almost
50 million a year—next to a total
fixed-line user base of just 65 million.
With handset prices plunging to as little
as $10 apiece and rock-bottom mobile rates
of only about a penny a minute, the trend
is clear, says the chief of the Bangalore-based
outsourcing giant: In any country where
a broad “legacy” fixed-line
infrastructure is lacking, mobile communications
can close the digital divide. Nilekani
sees a market split—high-end users
of fancier devices, entertainment and
education applications on one end; a vast
pool of low-end consumers on the other.
“We should not lose sight,”
he says, of “the equally huge opportunity
at the lower end of the game.” Low-denomination
prepaid cards are allowing the poorest
users to join the digital era; ubiquitous
technology, via rural kiosks, will eventually
bring all of India’s 600,000 villages
online. Nilekani’s remarks were
delivered in a session on “Asia’s
digital ecosystems” at the June
World Economic Forum gathering of business,
government and civil society leaders in
Tokyo. —Lucille B. Craft
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“Intelligent scarecrow” sounds
like a contradiction of terms. But that’s
exactly what a team of computer science
seniors at the University of South Florida’s
College of Engineering came up with for
a project aimed at helping the state’s
$40 million aquaculture industry. Fish
farming is big business, but stock is
often lost to predator birds. And many
of the birds are protected species, so
they can’t be harmed. The team came
up with “Erebus,” a scarecrow
in a USF football jersey whose head is
crammed with sensors, cameras and a micro
PC. When Erebus detects motion, its cameras
kick in, and intruders and nonintruders
are distinguished by color-recognition
software. The scarecrow also e-mails the
farmer (or calls his cell phone) to report
the incident. Moreover, it has speakers
that blast out sounds of loud gunshots
and it hits the birds with a high-speed,
but harmless, water cannon. Workers at
the ponds wear orange vests so Erebus
knows they’re not trespassers. The
students think similar smart scarecrows
could be used to police other crops from
poaching fauna.—TG
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The United Kingdom is a country where
electricians and plumbers routinely call
themselves engineers and are widely considered
so. Not exactly a great inducement to
study engineering at a university. (One
can almost hear British students skeptically
asking, “Four years of schooling
so I can unclog toilets?”) To help
counter that fuzzy perception, the country’s
Engineering and Technology Board has set
up a “science, engineering and technology
careers and lifestyle portal” to
better promote and explain what real engineers
actually do. The Web site, www.scenta.co.uk,
is aimed at young people who love technology
and gadgets but perhaps never considered
turning their avocation into a vocation,
or never knew how to. Information ranges
from career and education advice to a
database of role models to news about
games and gadgets, health, sports and
music—all with a tech or science
slant. Youngsters looking to find out
what’s new and cool in plumbing
will, however, have to look elsewhere.
—TG
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Will we someday wear clothes that make
us smell good—or, more accurately,
keep us from smelling bad? Engineers at
Wilkes University in Pennsylvania think
so. Engineering professor Ali Razavi is
heading a team of engineering and business
professors to build a 12-inch, roll-to-roll
machine that can coat fabrics with microscopic
nanoparticles that have a variety of properties.
The possibilities include: shirts and
blouses coated with particles that detect
and destroy the bacteria that cause body
odor; hospital uniforms covered with particles
that sense infectious diseases; military
uniforms enriched with particles that
detect chemical or biological agents;
and fabrics with improved fire-retardant
properties. If B.O.-battling clothes catch
on, commuters worldwide who daily cram
into crowded subway cars will breathe
a bit easier.—TG
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The task for the late architect James
Ingo Freed was to design an Air Force
Memorial that would “evoke flight
and the flying spirit.” The fact
that the just-completed structure of reinforced
concrete clad in a nearly inch-thick skin
of stainless steel succeeds is a testament
to the genius of Freed, who died last
December at age 75. That it was actually
built, however, is a testament to the
creativity of the engineers at Ove Arup
& Partners, who turned Freed’s
sketches into reality. The monument in
Arlington, Va., near the Pentagon, which
honors Air Force veterans, was inspired
by the Thunderbirds bomb-burst formation,
where jets shoot up vertically and veer
off in different directions, leaving behind
arching contrails. The result is three
curving spires, the tallest 270 feet in
height, the shortest 201 feet. Wind and
vibration could conspire to create oscillations
that would doom the memorial. To counter
those forces, the spires contain 13 steel
boxes hidden from view, each housing a
1-ton metal ball 20 inches in diameter.
The free-rolling balls act as dampeners
that allow the spires to sway—but
not dangerously so. —TG
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So just what is Google housing in its
gigantic new computing center in The Dalles,
Ore., along the Columbia River? The ever-secretive,
$6 billion company that revolutionized
Internet search engines isn’t saying.
Industry blogs speculate the complex—two
buildings the size of a pair of football
fields topped off by a couple of large
cooling towers—will be a “server
farm.” A recent New York Times article
speculated it’s likely meant to
further beef up Google’s already
impressive operational infrastructure.
That infrastructure not only supports
Google’s superfast search engine
but a growing number of other Web-based
products and services, including Gmail
and Blogger. Computing is migrating to
the Internet and Google is already offering
Web-based applications that were once
PC-based (and the domain of Microsoft),
including word processing and spreadsheets.
Microsoft realizes that, too. That’s
why it’s investing $2 billion next
year on capital expenditures; Google will
spend at least $1.5 billion. Microsoft
and Yahoo! are building data centers in
Washington, about 130 miles north of Google’s.
Google knows the faster a search request
is completed, the happier the customer.
So it has an estimated 450,000-plus servers
in dozens of clusters around the world
to ensure the near light speed of its
operations. That fiber-optic-linked network
of servers is essentially a supercomputer.
As Danny Hillis, a supercomputing expert
told the Times: “Google has constructed
the biggest computer in the world, and
it’s a hidden asset.” —TG
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AUSTRALIA—Fast-growing Chinese and
Indian economies are partly responsible
for Australia’s severe shortage
of engineers. More and more students from
these countries are picking up degrees
in Australia but then returning home after
graduation. To make matters worse, Australian
engineering grads are also taking jobs
in China and India, which have vast mining
and infrastructure projects. Australia
feels the engineering pinch the most in
its important mining sector but also in
water quality and arid land management.
The country graduated 110 mining engineers
last year, but 150 were needed. All told,
5,000 engineers graduated from Australian
universities in 2005; 20 percent of them
were foreign students. A recent survey
of 33 companies by Engineers Australia,
a professional association, revealed a
shortfall of 777 engineers. Though bad
for employers, this reality creates almost
guaranteed employment for engineering
graduates. Although the situation is not
expected to improve anytime soon, Australian
engineers who’ve taken posts in
developing countries tend to return home
in due course with prized practical
experience gained on significant projects.
–Chris Pritchard

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