Bio-Inspired Highspeed Trains in Japan
The Shinkansen bullet trains had become too fast for the tunnels and track structures. Therefore, the shock wave of air had to be reduced.
By observing the splash-less water entry of birds, engineers were able to solve the issue and even increase efficiency.
Sonic boom causing structure collapse and inefficiency.
Bio-inspiration from kingfisher bird
Nose geometry adjusted after beak of kingfisher
Result: 10% faster, 15% less electricity used