Ep 2 How Nature Reduces Acoustic Impact

How Kingfisher’s beaks changed the way we design fast trains cutting noise by up to 15 decibels. Function: Reduce acoustic impact Biological model: Kingfisher beak Engineering translation: Shinkansen bullet train nose redesignSources / further reading • Biomimicry Institute. Kingfisher-inspired Shinkansen design. https://share.google/mzcDAhsClBNQKl8pV• Crandell KE, Howe RO, Falkingham PL. Repeated evolution of drag reduction at the air-water interface in diving kingfishers. Journal of the Royal Society Interface. 2019;16(154):20190125. https://share.google/3V3kDtxWmdsUXwgWw• Kikuchi, Katsuhiro & Iida, M. & Fukuda, T.. (2011). Optimization of Train Nose Shape for Reducing Micro-Pressure Wave Radiated from Tunnel Exit. Low Frequency Noise, Vibration and Active Control. 30. 1-19. 10.1260/0263-0923.30.1.1. https://share.google/6Otr8SZap2VH4ZkcB• Fish FE, Lauder GV. Passive and active flow control by swimming fishes and mammals. Annual Review of Fluid Mechanics. 2006;38:193–224. https://share.google/fYrmvrEYY77IzQdz8• Lovvorn JR, Jones DR. Body mass, volume, and buoyancy of some aquatic birds, and their relation to locomotor strategies. Canadian Journal of Zoology. 1991;69(11):2888–2892. https://share.google/R7gVqSL4GfjcE0JLM• Vogel S. Life in Moving Fluids: The Physical Biology of Flow. Princeton University Press; 1994. https://share.google/00fvyNg5U4vymwNQWImage credits • Kingfisher via Envato • Bullet train via Canva Written and produced by Melanie Farmer. Podcast: Wild engineers. For learning and inspiration. Music and production completed in Movavi 2026. Please validate any design application for technical use.