Moths pull ahead in evolutionary arms race with sophisticated wing design (phys.org)

 

studies on moths reveal how they defeat a bat's echo-locating detection with wings that utilise broadband acoustic absorption. this is all the while still keeping the wing mass low and strong for its main design remit. 

 

will we see some trickle down into Hi-Fi products? 

or maybe listening room transformed into moth habitats?

 

quote - 

 Dr. Holderied, "Such a broadband absorption is very hard to achieve in the ultrathin structures of moths' wings, which is what makes it so remarkable."

This goes well beyond the limits attainable with classical porous absorbers of the kind currently used to absorb sound in office environments which use large, thick materials.

Edited December 4, 20205 yr by wasabijim

That explains it; my wife has a moth in her ear.

On 04/12/2020 at 3:25 PM, wasabijim said:

Moths pull ahead in evolutionary arms race with sophisticated wing design (phys.org)

 

studies on moths reveal how they defeat a bat's echo-locating detection with wings that utilise broadband acoustic absorption. this is all the while still keeping the wing mass low and strong for its main design remit. 

 

will we see some trickle down into Hi-Fi products? 

or maybe listening room transformed into moth habitats?

 

quote - 

 Dr. Holderied, "Such a broadband absorption is very hard to achieve in the ultrathin structures of moths' wings, which is what makes it so remarkable."

This goes well beyond the limits attainable with classical porous absorbers of the kind currently used to absorb sound in office environments which use large, thick materials.

 

quote "Most amazingly, moth wings also evolved a way to make a resonant absorber absorb all bat frequencies, by adding another amazing feature—they assemble many of these resonators individually tuned to different frequencies into an array of absorbers, which together create broadband absorption by acting as an acoustic metamaterial—the first known in nature,"

 

very cool

Mike