The
Cambridge Science Festival’s kickoff event, Big Ideas for Busy People,
presented quick snapshots of recent work by 10 researchers “who are established
stars or stars on the rise,” noted John Durant, director of the MIT Museum and the festival.
Topics
ranged from disaster preparedness to the rise of atmospheric oxygen and from
dancing with bionics to how today’s slot machines are designed to addict their
patrons. Each researcher raced to summarize their ideas and results as a
five-minute clock ticked down, and then answered thoughtful questions from an
audience of hundreds in First Parish Church on Friday evening.
Some
notes and quotes:
“Why
do we so often make decisions that we later regret?” asked Harvard’s Daniel
Gilbert. “We have a fundamental misperception of time; we will change much more
than we predict. It’s an illusion we all have—that we’ve just become the people
we will be for the rest of our lives.”
Lawrence
Candell of MIT Lincoln Labs showed a visual surveillance system under
development that integrates 48 cell-phone-like video cameras to provide
powerful 360-degree images and can automatically follow items such as moving
cars. As such systems become commercialized, they could find many uses beyond
surveillance, for instance at sport arenas such as the Boston Garden. “You could film and watch your own Boston Celtics game,” with the ability to narrow in on the actions and players that interest you most, Candell
remarked.
“The
bad news is yes, there are more disasters and the impact of disasters is
increasing,” said Paul Biddinger of Massachusetts General Hospital. Working to minimize the effects of disasters, “we’ve learned what
works and doesn’t work, and what does work is practice, practice, practice.”
Elliott
Rouse of the MIT Media Lab described the creation of a bionic ankle for
Adrianne Haslet-Davis, a dancer who lost part of her lower leg in last year’s
Boston Marathon attack, and showed a video of Haslet-Davis dancing again. “We
can put people back in places they thought they’d never have again,” Rouse
said. “It’s only a matter of time until bionic limbs are better than the ones
we have.”
“Slot
machines are the most potent and addicting form of gambling there is,” said
MIT’s Natasha Schull. “They are solitary, continuous and rapid, and gamblers
enter what they describe as a machine zone. It’s not about winning; they’re not
dupes in that sense. They even describe winning as irritating. What they want
is time on the device.” Schull outlined the many tricks gambling companies now
use to enhance this addiction, with sophisticated slot video games. One trick
is the “false win,” she noted, in which the machine provides “all the same
feedback of winning, but it’s a net loss.”
Harvard’s
Tadashi Tokieda demonstrated a “chain fountain”—pull a thin chain out of a
plastic cup and let go of the chain and it will flow up from the cup before
turning back down again—and explained a likely mechanism with a stick. “I like
to explore surprises that are amusing and interesting to non-scientists and
scientists,” he added. Asked where he finds such surprises, Tokieda said they
are everywhere around: “There’s an enormous amount of universe.”
“I
don’t know why we long so for permanence, given the fleeting nature of things,”
remarked MIT’s Alan Lightman. “Our consciousness makes us feel we are immortal
beings,” he added. “Yet Nature is screaming at us as the top of her lungs that
everything is passing fast.”
MIT’s
Tanja Bosak skimmed through the mysterious multi-billion-year timeline in
which Earth’s oxygen levels rose from almost nothing, noting that
jellyfish-like fossils gave one indication of increased oxygen as of 560
million years ago. “If you ask me why we have 20% oxygen in today’s atmosphere,
I have no idea,” she acknowledged.
Many
Boston-area plants now blossom 10 days or more earlier than they did in the
1850s, according to records kept by Henry David Thoreau and others, said Boston University’s Richard Primack. Bees and butterlies also often emerge much earlier
in the spring, but migrating birds often arrive only a few days earlier than
they did back then. These changes in schedule raise worries that “birds could
miss this great pulse of insects in the spring,” he pointed out.
Amanda
Randles of Lawrence Livermore Labs presented work that models the fluid
dynamics of blood plasma with the movement of red blood cells to help study
cardiovascular disease for individual patients using their MRI and CT scans. Such an analysis currently takes
hours on one of the world’s largest supercomputers, but she hopes that within a
few years, “it becomes something physicians can do on a real-time basis in the
office.”
Videos of past years' Big Ideas are available at http://www.youtube.com/user/CambridgeScienceFest/videos. 2014's videos will be up on the Cambridge Science Festival channel after the April festival.
Eric Bender is a science writer based in Newton.
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