Why don't other animals do this?!
Bats & moths have been locked in a #SonicArmsRace for millions of years, creating something superior to anything humans have yet invented. ✨ Brilliant is a simple way to learn the principles of math & science! Try Brilliant and support making more of this show: brilliant.org/trace
👇👇👇 S O U R C E S & M O R E 👇👇👇
Welcome to the description. I'm happy you're here.
👂👂👂 A U D I O N O T E 👂👂👂
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📒📒📒 C H A P T E R S 📒📒📒
0:00 Good video is good audio
1:36 65 million years before this video
2:30 Top Gun: Mothrick
2:58 The Sonic Arms Race
4:09 Sound-abosrbing scales
04:29 WTF is a metamaterial?
4:42 Graphene has entered the chat*
5:00 🤩 The Moth's Amazing Metamaterial
5:31 How acoutsic metamaterial works (we think)
5:56 we are so far behind
6:50 A BUT THATS NOT ALLLLLL!
7:32 Musings about other species
11:24 The End?
📙📙📙 B L U R B 📙📙📙
Bats & moths have been locked in a #SonicArmsRace for millions of years, and their evolution may help us create sound-absorbing materials superior to anything humans have invented today. Bats evolved #echolocation in order to better hunt moths (their prey). In response, certain species of moth evolved ways to absorb or reflect the echolocation squeaks of the bats. After millions of years of evolution pressure, some moths can absorb broad frequencies of sound with an efficiency only seen in advanced engineered #metamaterials. What does this mean for us? Someday, we humans may learn to copy the moth's evolutionary advantages and absorb broadband sound using paper-thin technologies that simply wouldn't exist otherwise!
📕📕📕 L E A R N M O R E 📕📕📕
Moth wings as sound absorber metasurface
royalsocietypublishing.org/doi/10.1098/rspa.2022.0046
Each scale absorbs sound at the frequency of its main resonance modes [21]. When numerous scales of differing size and therefore resonant frequencies cover the membrane, the result is broadband acoustic absorption in the deep-subwavelength regime
Moth wings are acoustic metamaterials
www.pnas.org/doi/10.1073/pnas.2014531117
Bats and moths are embroiled in an evolutionary arms race. Using ultrasonic biosonar, bats detect their insect prey, which in turn deploy diverse strategies to avoid predation. Here, we show that some moth species evolved wings covered with a canopy of scales that reduces ultrasonic echoes. Our empirical and mathematical analysis together show that moth wings exhibit key features of a desirable technological acoustic metamaterial. This work enriches our understanding of the structural and functional complexity of lepidopteran wings and reveals enticing new ways to design, using bioinspired metamaterial properties, high-performance acoustic panels and noise mitigation devices.
Ultrasonic predator-prey interactions in water-convergent evolution with insects and bats in air?
www.frontiersin.org/articles/10.3389/fphys.2013.00137/full
The ultrasound sensitive ears in combination with sudden evasive maneuvers mitigate predation risk from echolocating bats, increasing the insect's chance of survival by at least 40% (Surlykke et al., 1999). Some bats have lowered the intensity of their calls by 20-40 dB, apparently as a counterstrategy against the ultrasound sensitive ears (Goerlitz et al., 2010). While other bats echolocate at frequencies outside the best hearing range of moths
This video has been dubbed using an artificial voice via aloud.area120.google.com to increase accessibility. You can change the audio track language in the Settings menu.
Some images by Getty Images
Music by Epidemic Sound
Love you, #nerdfam! Stay #curious!
Пікірлер: 54
Oh my lord, for some reason the Audio Track dub turned on for the first time idk y. I thought I was going insane for a second 😂 Didn’t even know that feature existed, cool I guess
@lajawi.
Жыл бұрын
Same
@TraceDominguez
Жыл бұрын
If you hit the Gear (⚙) > Audio Track 🎶 > Then ENGLISH ORIGINAL. Not sure why KZread would default to the Descriptive track (or any of the other audio tracks)!! It's a beta feature! SORRY
It still wrinkles my brain that 'hearing' is actually just a specialized version of our sense of touch. If you can't _feel_ sound, you can't hear anything.
@TraceDominguez
Жыл бұрын
YES Wowwwwww love that
ohh! you're not dead!
@TraceDominguez
Жыл бұрын
Nah, just had a baby! Quite the opposite of dead :P
@alexwoodhead6471
Жыл бұрын
@@TraceDominguez OMG! AWESOME! hope it's going well 😁
Fact: It's physically impossible not to get excited about something when Trace talks about it.
Trace needs his own Netflix show
@TraceDominguez
Жыл бұрын
ooohhhh from your keyboard to the Flix's ears
5:47 I thought stealth planes don't really absorb radar but reflect it in directions it wouldn't bounce back to the radar detector? like up or directly down. That why they have that shape, if they were round there is always some surface that is going to bounce back to the receiver.
@TraceDominguez
Жыл бұрын
True!
6:57 Those "don't eat me, I'm toxic" chirps by the tiger moths remind me of the bright colour schemes of some caterpillars. So, in analogy, I expect the next step to be other moths who are not toxic to start producing the same chirps, because the bats avoid chirping moths 😄 Evolution is fascinating.
Trace trace trace! So excited. But omg I have always been looking for sound absorbers that are small size, mostly thickness wise, and easy to apply for YEARS. Need this to become commercial.
@TraceDominguez
Жыл бұрын
Hopefully we can biomimic this!!
Trace your videos are always amazing, it astounds me how your enthusiasm can make me interested in something I never really considered before! I hope fatherhood is treating you well and that the munchkin still allows you time for more videos like this ☺️
I can't believe this channel is not huge yet! Great quality, and you're way easier to understand than Veritasium.
@TraceDominguez
Жыл бұрын
Thank you! I really try to be high quality. I like that you find me easy to understand, that’s a big goal of mine. Veritasium is also great, we have different strengths for sure
@OhGee_Joe
Жыл бұрын
@@TraceDominguez And you're polite/humble! What a guy! 😄
Glad to see you back again
@TraceDominguez
Жыл бұрын
glad to be back!
That kinda paper would be awesome put into hotel rooms.... No more sleepless nights you pay for while the room renters next door keep talking loudly, keep the party going or having rompous relations.. :)
@TraceDominguez
Жыл бұрын
RIGHT???
I had a good laugh on the phone on silent joke. 😂😂
@TraceDominguez
Жыл бұрын
ha! I'm glad someone else thought it was good. I wrote it and thought -- this is SO STUPID.
Glad to see you're back! It's been hell in these yt streets 😩
@TraceDominguez
Жыл бұрын
If we're going to war, we'd better learn from the bats and moths
But sounds only exist in the presence of humans specifically. Thats what lovely intelligent people who say "If a tree falls in the woods and there's no human there to hear it then it doesnt make a sound" tell me anyway...
Engagement for the engagement god!
I liked the first title/thumbnail better. For what it's worth.
@TraceDominguez
Жыл бұрын
Thank you for the feedback! There is no A/B testing for KZread thumbs. That first one was clicked on
Thanks! That was a cool video!
@TraceDominguez
Жыл бұрын
thank you!
@Nyambui
Жыл бұрын
@@TraceDominguez you're very welcome (as a person who feels science text books are the documentaries of literature )
Engaging video, thank you!
Glad to get my Uno Dos of Trace in...Hope dad life is treating you good and your wife is doing well. Excited for the next video!!
@TraceDominguez
Жыл бұрын
Thank you!! 🥰 everyone is doing great
So happy to wake up to see a new video from you Trace! Absolutely loved this, and happy to see You and Julian working together again. Can't wait to see what you have next for us.
@TraceDominguez
Жыл бұрын
So glad you liked it! More coming in the next couple of weeks. Shooting it today actually!
Look who's back 😅
@TraceDominguez
Жыл бұрын
YOOO
Thanks, Trace, that was interesting!
@TraceDominguez
Жыл бұрын
Glad you enjoyed it!
Great homage there to Walk on the Wild Side! 😂 Great video. Always look forward to your content. Have done since the Dnews days!
What an interesting world that would be with sound dampening built into everything. I wonder if that meta material would have problems removing low frequencies so living near an airport or a highway would still be "loud" but might make it more bearable.
@TraceDominguez
Жыл бұрын
I wonder!!!
Ok but why does that moth look like a pelvis
@TraceDominguez
Жыл бұрын
Try this: why does a pelvis look like a moth?
What happened to animal IQ in pbs terra?
@TraceDominguez
Жыл бұрын
It's on hiatus for the time being! Hopefully we can renew it and do more!
@m0nke13
Жыл бұрын
@@TraceDominguez I would love Animal IQ about the great apes and pigs.
noice