So human lungs are piston engines whereas bird lungs are turbojet engines. | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

xeonmc on April 18, 2024 | parent | context | favorite | on: Feathers are one of evolution's cleverest inventio...

So human lungs are piston engines whereas bird lungs are turbojet engines.

jessekv on April 20, 2024 [–]

It's interesting that mammal lungs are inefficient for the same reason two-stroke piston engines are.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact