Lesson 7－Part 3
Biomimetics is also used /
to solve environmental problems. //
The 500 Series bullet trains have a unique design. //
There is a practical reason /
for the design of the front of the train. //
At first, /
the train made a loud noise /
when it entered tunnels. //
The designers worked hard /
to reduce this noise. //
One day, /
a designer watching birds /
thought of an idea. //
It was /
to make the train’s nose very long /
like a kingfisher’s beak. //
Kingfishers are very good at /
diving into the water /
and catching fish. //
The shape of their beak makes it possible /
to dive with little resistance /
from the water surface. //
In the same way, /
the beak-like shape of the train /
reduces the air resistance /
that causes noise. //
