Japan Has a Bullet Train That Was Designed After a Kingfisher
A side-by-side comparison of a kingfisher diving into water and the streamlined nose of a Shinkansen bullet train
The Shinkansen 500 series had a noise problem when exiting tunnels at high speed. Engineer Eiji Nakatsu, a birdwatcher, redesigned the nose to mimic a kingfisher's beak, eliminating the sonic boom and improving fuel efficiency by 15 percent.
Why Itβs Interesting
This is a landmark case of biomimicry in engineering. By copying how a kingfisher enters water without a splash, Japan solved an acoustic engineering problem that conventional approaches could not crack.
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