Moths draped in stealth acoustic cloak evade bat sonar
chemistryworld.com
Moths draped in stealth acoustic cloak evade bat sonar
1–10 of 34 posts
Re: Moths draped in stealth acoustic cloak evade bat sonar
#2> Holderied says it could be possible to make materials ‘10 times more efficient at absorbing sounds than what we are using in our homes and offices’. Think sound-absorbing wallpaper, not panels, he adds.
I would love to have something like that. All these open floor plan offices and open concept homes are loud AF.
Re: Moths draped in stealth acoustic cloak evade bat sonar
#3Now if only they had ladders to climb out of bathtubs, they'd be unstoppable.
Re: Moths draped in stealth acoustic cloak evade bat sonar
#4> Holderied says it could be possible to make materials ‘10 times more efficient at absorbing sounds than what we are using in our homes and offices’. Think sound-absorbing wallpaper, not panels, he adds. I would love to have something like that. All these open floor plan offices and open concept homes are loud AF.
I would love it around my place, on the walls, no more loud neighbors would make this place paradise!
Re: Moths draped in stealth acoustic cloak evade bat sonar
#5> Holderied says it could be possible to make materials ‘10 times more efficient at absorbing sounds than what we are using in our homes and offices’. Think sound-absorbing wallpaper, not panels, he adds. I would love to have something like that. All these open floor plan offices and open concept homes are loud AF.
There's a catch for a moth fur farm startup though (plush might work better):
> The acoustic cloak works between 20kHz and 160kHz
Re: Moths draped in stealth acoustic cloak evade bat sonar
#6Well that answers my question about some moths are so furry. Selection at work!
Re: Moths draped in stealth acoustic cloak evade bat sonar
#7I love all the things we're still learning from nature! All of the secrets and intuition that's yet to be found astounds and excites me.
Re: Moths draped in stealth acoustic cloak evade bat sonar
#8> Holderied says it could be possible to make materials ‘10 times more efficient at absorbing sounds than what we are using in our homes and offices’. Think sound-absorbing wallpaper, not panels, he adds. I would love to have something like that. All these open floor plan offices and open concept homes are loud AF.
I would love it around my place, on the walls, no more loud neighbors would make this place paradise!
Hanging sheets of foam-backed mass-loaded vinyl might help. But maybe not practical :)
Re: Moths draped in stealth acoustic cloak evade bat sonar
#9Richard Dawkins, in either ‘The Selfish Gene’ or ‘The Blind Watchmaker’, describes the arms race between bats and insects. Quite a fascinating affair—just bats' own evolution is intriguing: how do they differentiate between their own and others' echolocation signals? Well they have a ‘code’ in the signal specific to each specimen. And then, insects ‘learn’ to mimic bats' signals so a bat thinks it's another bat there and not a dinner. Etc etc.
This discovery might be at least the third one this year in this same field, if another one mentioned in the article isn't the one I've seen on HN.
Re: Moths draped in stealth acoustic cloak evade bat sonar
#10The Hawk moth has evolved to emit ultrasonic clicks that jam the bat sonar:
https://www.sciencemag.org/news/2016/01/moths-avoid-capture-...
Just more examples of the power of evolution.