Living Fighters

The acoustic protection of moths is so effective that it outperforms many industrial insulation materials. Unlike artificial counterparts, the butterfly wing is a light, thin film that works across several acoustic ranges simultaneously.

Nature has created an ideal sound absorber without using heavy metals or complex polymers.

This evolutionary lesson shows that for success in an arms race, it is sometimes better not to build armor, but to learn how to disappear.

#nature #engineering #biology

Quiet Trains of the Future

Engineers applied the structure of owl feathers when creating blades. This shape reduced noise levels by a record thirty percent, making a breakthrough. 🚄

#Technologies #Engineering #Inventions