It is so interesting to note how nature can change our mind. Take for
example the following thought "how a butterfly can be useful to create an
airplane". There are many kinds of butterflies scattered in all world. The
characteristic that most calls human’s attention is the diversity of colors in
each butterfly. However, one interesting characteristic have called scientist’s
attention. The butterflies have wings which are waterproof.
Picture retrieved from National Geographic Virtual Library
Beyond the wings be necessary used to fly, they are used to protect
butterflies’ body, repelling water. This fact is important to be noted because
the efficiency of flying depends of the moisture. As a result, engineers are
studying the butterflies to take them as model to build future airplanes.
Daniel Stone wrote in his article "Waterproof Wings" one interesting
quotation of MIT’s Kripa Varanasi, which explains “If we can reduce the contact
time with water, a surface can stay dry longer”.
Picture available here.
If engineers find the answer “How can we make better airplanes?” only
getting inspiration looking at the nature, certainly the idea found into nature
will solve many problems current existent on airports. As consequence, less
flights would delayed since it would be easier to remove the ice impregnated in
the airplane.
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