 |
|
 |


Even though you know that NASA
successfully landed robots Spirit
and Opportunity on Mars in 2003,
the thrilling new Imax movie “Roving
Mars” makes you bite your
nails and start to wonder if the
duo completed the long journey.
You watch anxiously as the scientists
and engineers struggle to get the
rovers ready in time for a launch
date that’s based on the orbits
of Earth and Mars lining up. It’s
only during this short window of
opportunity that they can load enough
fuel into the rovers for the 300
million mile trip. Getting to the
Red Planet is tricky business, and
NASA engineers had to overcome a
host of problems, including parachutes
that kept tearing during test runs.
You suffer through the tense moments
in the control room as engineers
wait to see if Spirit and Opportunity
land safely. Once they touch down,
you watch in admiration as the rovers,
who by now have developed their
own personalities, set out to discover
if Mars ever had water on its surface.
“Roving Mars,” which
is a mix of actual film footage
and computer animations that had
to pass muster from NASA, is playing
this summer at more than a dozen
Imax theaters around the nation.
—Jo Ann Tooley
|

AUSTRALIA—Doctors haven’t
been happy with the accuracy of
catheters used in testing patients
with swallowing difficulties. And
because the devices are used over
and over again, there is also the
possibility of infection. But after
two years of research, an engineering
team at Adelaide’s University
of South Australia has come up with
a disposable catheter that is more
accurate. It can also be tossed
after use, avoiding the risk of
transmitting infections between
patients. “Existing catheters
are too expensive just to throw
away,” says Hung-Yao Hsu,
a mechanical engineer who headed
the group developing the new equipment.
“But we’ve developed
a gadget that’s one-tenth
the price and is much more accurate.”
The new catheters, which will be
available in about three years,
use solid-state sensors to measure
the pressure of swallowing. Patients
are sometimes uncomfortable during
the procedure and will move around,
increasing the risk of inhaling
fluid into their airways. The new
catheter also eliminates that risk.
—Chris Pritchard
|


It’s a competition that has
its genesis in something literally
out of this world. In 2005, NASA
launched its first annual Space
Elevator Competition. The challenge:
to build a robot elevator that could
climb a 60-meter cable at an average
speed of 1 meter per second, powered
only by the light from a 10,000-watt
searchlight.
Scientists and engineers have expressed
interest in developing the technology
with the long-term goal of creating
a space elevator—a 36,000
kilometer long carbon nanotube from
the surface of the Earth to a geostationary
Earth orbit that would cut the price
of transporting people and payloads
into space to a fraction of the
current cost using conventional
rockets.
No team managed to win first prize
in 2005, but the group deemed “Most
Likely to Succeed in 2006”
is working full tilt for this year’s
competition, which will be held
in California this summer. Steve
Jones, the leader of a 30-person
group of engineering students from
the University of British Columbia,
says even if his team doesn’t
win the $150,000 first prize, “the
competition has been an excellent
way for us to learn how to work
effectively in teams and to learn
some of the basic engineering skills
that are required to function in
the real world.” —Pierre
Home-Douglas
|

Troublemakers
beware: Cutting-edge biometrics
technology may soon keep you out
of many bars and nightclubs. JAD
Communications & Security, a
New York-based company, is peddling
the BioBouncer security system to
clubs. It uses facial recognition
software to root out potential troublemakers.
The system’s camera records
the faces of everyone entering and
compares them against a database
of photos of people known to have
seriously misbehaved in the past.
The system can also be networked
to other area bars and clubs, so
staff will be alerted to people
who have caused problems elsewhere.
JAD cofounder Jeff Dussich says
BioBouncer is really just an extra
pair of eyes. The setup costs $7,000,
and JAD also charges $6,000 in support
fees. Civil liberties groups are
critical of the service. The Electronic
Frontier Foundation told Wired magazine
that not only is facial recognition
software often inaccurate but it
could be used against innocent customers.
Clearly JAD is sensitive to such
charges. The homepage of the BioBouncer
Web site features a large info box
explaining why the technology doesn’t
violate anyone’s privacy.
According to Dussich, clubs in countries
around the world are already expressing
an interest. Club owners, it seems,
like the idea of having an electronic
big brother helping out with security.
—Thomas K. Grose
|

TOKYO—Japan’s demographic
time bomb is forcing the country’s
male-chauvinistic science culture
to start mending its ways. The only
major industrial country to eschew
immigration as a means of compensating
for its rapidly aging and dwindling
population, Japan is officially
counting on its underutilized female
workforce to pick up the slack in
a host of fields—and science
is no exception. The Third Science
and Technology Basic Plan, which
runs from 2006-2010, at 25 trillion
yen ($208 billion) marks a modest
increase over the previous 24 trillion
yen, five-year program. So in order
to achieve a “quantum leap
in knowledge discovery and creation”
at a time of fierce global competition
and tight budgets, smarter deployment
of human resources—including
expanded opportunities for female
researchers—is front and center.
The Basic Plan sets aside grants
aimed at making it easier for women
to return to the lab after childbirth.
The goal is to have females filling
a quarter of all science and engineering
positions at universities and public
research institutions, up from only
about 11 percent now—an OECD
low. (The target for females holding
positions in engineering research
is 15 percent.)
Institutes will compete for grants
aimed at producing innovative solutions
for luring women back to work after
childbirth/childrearing. Science
fellowships will be awarded to new
parents, and a mentoring program
will match women scientists with
budding female engineers, physicists
and chemists at Japanese high schools.
“To enhance the activities
of diverse and superior scientists,
expanded hiring of women researchers
is desirable,” according to
the Council for Science and Technology
Policy, Japan’s top science
advisory panel. The council calls
for pay and promotion scales, long
stacked against women scientists,
to be adjusted in order to “aggressively
employ women scientists.”
—Lucille P. Craft
|


The
Rinspeed zaZen, a concept sports
car that features the latest in
automotive high technology, debuted
earlier this year at the Geneva
Auto Show. Created by Swiss designer
Frank M. Rinderknecht, the zaZen’s
most striking feature is a transparent
roof that offers the views of a
convertible with the safety and
protection of a hardtop. The clear
plastic top is fashioned from Makrolon,
a polycarbonate invented by Bayer
Material Science. It also has holographic
brake lights. Under the hood, the
zaZen is powered by a Porsche engine
that can hit a top speed of nearly
180 mph and accelerate from zero
to 60 in 4.8 seconds. Should Rinspeed
ever build and sell the car, it
may offer it with a natural gas
propulsion system—so it can
be peppy but not polluting. —TG
|

Naked
Conversations:
How Blogs Are Changing the
Way Businesses Talk With Customers
By Robert Scoble
and Shel Israel
Published by John Wiley & Sons,
Inc.
Robert Scoble works for Microsoft,
a.k.a. the Evil Empire. And since
2000, Microsoft has let him write
a popular blog on controversial
subjects in business and technology.
It’s considered a naked blog:
It goes out without being vetted
by any company officials, which
gives it currency. Scoble’s
blog reaches 3.5 million readers
a year. Now he and Shel Israel,
an innovation expert, have written
“Naked Conversations: How
Blogs Are Changing the Way Businesses
Talk With Customers.” They
posit that the blogosphere enables
companies to talk to and hear from
customers, and that can help Corporate
America repair its tattered image.
“Most people don’t trust
big companies,” the authors
write, and Microsoft is usually
the poster boy for anti-corporate
feelings. Corporations are seen
as heartless, predatory and lacking
humanity. But by introducing meaningful
dialogue into the equation, blogs
can improve that perception of business.
Perhaps. However, the popularity
of Scoble’s acclaimed blog
hasn’t burnished Microsoft’s
rep. As the book admits, lots of
people still think “Microsoft
sucks.” —TG
|
| QUOTED |
|
“It’s
deep in the future before
we get there. But it’s
like going on a camping
trip and buying a car. You
want to make sure you have
a trailer hitch if you need
it.”
—
LARRY TROUPS, HEAD OF HABITATION
SYSTEMS FOR NASA'S ADVANCED
PROJECTS OFFICE, REFERRING
TO PLANS TO BUILD A VEHICLE
THAT WILL ALLOW ASTRONAUTS
TO EXPLORE THE MOON'S SURFACE.
|
|

Greed is good,” said the
fictional stock market tycoon Gordon
Gekko in the 1987 film “Wall
Street.” He was, of course,
referring to tough takeover tactics
employed by large, rapacious corporations
against smaller rivals. But what
works for Wall Street also apparently
works in nature, when it comes to
massive fluid vortices, like hurricanes
and whirlpools. New research conducted
at Johns Hopkins University and
Los Alamos National Laboratory indicates
that the hostile takeover business
model may explain how large vortices
acquire the energy to sustain themselves.
An earlier theory suggested a more
collegial business model: the merger.
It was thought that big and small
vortices mutually combined their
assets. But the Johns Hopkins study
concluded that large vortices act
more like corporate raiders. They
take over smaller eddies, suck the
energy from them, then toss them
aside to either die or renew themselves
at the expense of even smaller vortices.
The phenomenon is called a “reverse
energy cascade.” The two-
and-a-half-year study focused on
turbulent, two-dimensional flows
of gas or liquid, like hurricanes
and typhoons. Shiyi Chen, a professor
of mechanical engineering at Johns
Hopkins, says learning how hurricanes
and large ocean eddies form is important.
“It should help us to create
better computer models to make more
accurate predictions about these
conditions.” And as any Wall
Street wheeler-dealer can tell you,
predicting the future is never easy.
—TG
|

Outgoing Harvard President Lawrence
Summers was meant to be a change
agent. He wanted professors to teach
more undergraduate classes. He battled
against grade inflation. And perhaps
his biggest project was an ongoing
curricular review, initiated in
2002. But instead of overseeing
an overhaul of America’s most
prestigious college, Summers instead
became embroiled in a change he
didn’t want or foresee: a
changing of the guard. He resigned
(he leaves office this month) after
a year-long controversy over remarks
he made suggesting that innate gender
differences might be the reason
for a dearth of women in engineering
and science.
But the review process he launched
seems to be continuing despite the
turmoil surrounding Summers. Interestingly,
it was engineering and science professors
who nearly derailed the effort,
even though the majority of faculty
members in the Division of Engineering
and Applied Sciences (DEAS) were
Summers supporters. The engineering
professors, however, disliked a
recommendation that would delay
students from making their choice
of concentration until the middle
of their sophomore year. The fear
was that by delaying that decision,
students wouldn’t meet early
enough with departmental advisers
(with whom they now meet at the
end of their freshman year), and
that could result in many failing
to take key prerequisite courses
in the right order. But a proposed
change in the plan to require students
to meet with at least one adviser
from a concentration they’re
considering seems to have overcome
DEAS objections. Summers is leaving
Harvard, but his grand plan to update
its core curriculum may yet come
to fruition. —TG
|

West Virginia has a heavyweight
problem: too many fat kids. So its
schools are hoping a computer game
will encourage some students to
shape up. The game, Dance Dance
Revolution (or DDR), requires players
to mimic dance steps that flash
up on a computer screen. At 62 percent,
West Virginia has one of the worst
obesity rates in the country. And
it ranks first for high blood pressure
and fourth for diabetes. Nearly
half of its fifth graders are overweight.
DDR players dance on a light- and
color-coded mat, trying to keep
up with the rockin’ computer.
The manufacturer, Konami, a Japanese
company, is contributing $75,000
to the cost of the $500,000 project.
Each unit costs $750. The DDR machines
are not expected to replace physical
education classes but to give kids—
particularly those who aren’t
fans of traditional sports—
another option to be active. The
program targets kids ages 10 to
14 because it’s around that
time in life when most of us develop
lifelong exercise habits. And it’s
hoped these students will learn
to boogie down to trim down.—TG
|
| BY
THE NUMBERS |
|
Best
Job in America:
Software
Engineer
—
BASED ON RANKINGS BY MONEY
MAGAZINE AND SALARY.COM.
|
|

A recent study found that the
vast majority of American parents
think their kids are receiving an
adequate amount of science and mathematics
lessons. But Jo Ann Vasquez says
they’re very, very wrong.
Vasquez is lead author of a policy
report, “America’s Pressing
Challenge: Building a Stronger Foundation,”
recently released by the National
Science Board’s (NSB) Subcommittee
on Science and Engineering Indicators.
And she points to U.S. student performance
in the Program for International
Student Assessment (PISA), which
tests students from around the world
on their math and science knowledge.
“Our very best 15-year-olds
are near the bottom internationally
on a test of practical applications
of science and mathematical skills,”
Vasquez says. The subcommittee report
was released simultaneously with
the NSB’s biennial report,
“Science and Engineering Indicators.”
That study also indicated that while
the United States remains a leader
in discovery and innovation, the
future is cloudy because American
K-12 students perform poorly in
math and science compared with their
peers in many other countries.
Among the board report’s
recommendations: stronger K-8 teacher-training
programs and improved compensation
for math and science teachers (to
a level akin with what comparably
trained science and engineering
professionals earn in the private
sector). Schools are losing qualified
teachers because of low pay and
job dissatisfaction, the report
says. That forces too many schools
to use sub par replacements. A quarter
of science teachers and a fifth
of math teachers are not fully certified
to teach. Meanwhile, U.S. Education
Secretary Margaret Spellings says
one way to better prepare high school
students for college-level math
and science courses is for Congress
to approve President George W. Bush’s
American Competitiveness Initiative.
The Bush plan calls for training
70,000 new teachers to teach Advanced
Placement and other accelerated-learning
math and science programs. Spellings
says the goal is to make AP classes
more widely available to students.
—TG
|

Scholarly debate is one thing.
But there’s a full-scale feud
raging between the scientific journal
“Nature” and the world’s
oldest encyclopedia, the “Encyclopaedia
Britannica.” The issue: Is
the online (and free) Wikipedia
encyclopedia as accurate as the
Britannica? Wikipedia, of course,
is based on open-source software
that allows unpaid contributors
from around the world to write and
edit its entries. Last year, Wikipedia’s
reputation sustained a high-profile
black eye over a posted biography
of legendary newsman John Seigenthaler
that claimed—falsely, if not
bizarrely—he had been a suspect
in the assassinations of President
John Kennedy and his presidential
candidate brother Robert.
But Nature’s study last December
determined that “the difference
in accuracy (between the two encyclopedias)
was not particularly great”
and that major errors in Wikipedia,
like the Seigenthaler debacle, were
rare. Nature’s news team took
50 articles from each resource—on
topics as diverse as the Archimedes
Principle, the kinetic isotope effect
and Pythagorus’ Theorem—and
asked experts to vet them, without
revealing their source. Now the
Brittanica—clearly not happy
with the claim that it is no more
reliable than an upstart, free rival
compiled by anonymous contributors—has
struck back. Brittanica claims that
“almost everything”
in the Nature article was “wrong
and misleading.” Britannica
says it’s not infallible but
is nonetheless a reliable source,
given its “strong scholarship,”
judgment and editorial oversight.
It demanded a retraction. Nature’s
response: No way. It’s “confident”
the comparison was fair, it says.
—TG
|
|
 |
|
|
 |
 |
 |
 |
 |