I was reading an article in the
Economist the other day. It
reported on the creation of unmanned gliders, which, unlike planes, rely on
wind currents and thermals to maintain speed and loft. Tactical Long Endurance
Unmanned Aerial System (TALEUAS), is being developed by the Naval Post Graduate
school in Monteray California. TALEUAS relies on a sophisticated software and
sensors, which can detect the presence of thermals and pilot the plane to take
advantage of the lift. Much like its avian counterparts, it can stay aloft all
day drifting from thermal to wind gust.
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Bullet train, inspired by Kingfisher's beak |
This is a fascinating take on biomimicry, the discipline
that looks to nature for engineering and design solutions. Inspired, I came
across a number of interesting articles and insights online. Those of you
looking for inspiration, are encouraged to consult the website,
AskNature.org,
which catalogues the strategies that nature employs for a variety of functions.
For example, carbapenem-resistant enterobacteriaceae (CRE) is an drug resistant
bacteria that is reaching epidemic levels in hospitals. According to the
Center for Disease Control, it is found in 18%
percent of long term acute care facilities, and it kills half of the patients that it
infects. CRE and other “superbugs” are becoming more difficult to control
because the development of new antibiotics is failing to keep pace with the
evolution of these bacteria. Instead of a antibiotic arms race, however,
researchers, such as
Anthony
Brennan, a materials science and
engineering professor at the University of Florida, are taking cues from sharks
to mitigate the spread of these powerful pathogens. Shark skin has an unusual
characteristic in that it does not harbor algae or aquatic bacteria. This is because
its rough surface, which paradoxically reduces drag in the water( inspiring the
now banned “shark suits” of the 2008 Summer Olympics) also prevents bacteria
and algae to attach to its skin. Brennan, who replicated the physical
characteristics of the skin on hospital countertops and doorknobs, has reduced
bacterial colonization of MRSA virus by 86 percent, e-coli bacteria by 99
percent and Pseudomonas aeruginosa by 100 percent after one hour of air
exposure. Researchers are hopeful that this strategy can mitigate the effect of
CRE.
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"Sharkskin" that repels bacteria |
These
are fascinating examples of using nature as a design primer, and biomimetic
principles are also gaining credence as business strategies. Green Biz ran an
interesting article about this here.
It is
not surprising that nature, with over 3.8 billion years of experience could be
a powerful source of insight into design and business solutions. At its core, the principles
of the lean startup, with its rapid iterations are not unlike the process of
evolution, where nature “pivots”
towards a better system.
It
will be exciting to see what lessons the natural ecosystems have in store for
us, and how we can apply insights therein towards creating a more sustainable
future.
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