Listen: BrainStuff Classics: Is There A Noise Loud Enough To Kill You?
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But interesting, nonetheless, if a noise was loud enough, could it straight up kill you. Hey, I'm Christian Sager. And this is brain stuff. If you're standing next to a jet during takeoff, your eardrums will probably burst. Same thing happens when you fire a twelve gauge shotgun right next to your ear were exposed to exceptionally loud. Noises. Something called the stereo Silia in our ears gets damaged. This causes our ears to mistakenly send signals to our auditory nerve cells, the resulting ghostly reverberations are what we call ringing ear many of you have probably experienced this possibly from going to a really loud concert, the technical term for it is tonight us, and it's usually temporary unless you repeatedly damage your ears with loud noises, then it develops into chronic tonight. Tonight's where you hear that dull ringing for the rest of your life. And that's nothing compared to what really loud noise can do to. You knows hates you and noise. Can kill you see sound travels in waves the enter our ear canals these waves make our eardrums vibrate in if they're too strong. They can snap the hair cells inside. And if these hair cells die they can never grow back to avoid this. We use units called decibels to measure the power of sound anything below eighty five decibels is thought to be safe at one hundred and fifty decibels your eardrums burst like the jet or the shotgun. And at two hundred decibels your lungs will rupture and likely kill you. That's right. The threshold for death by sound is somewhere between a hundred and eighty five and two hundred decibels. What happens is the sound causes an air embolism within your lungs that can travel to your heart and kill you dead. That is if your lungs don't burst. I from the increased air pressure caused by acoustic energy, this has happened during wars when high energy impulse noise from explosions causes. Is something called blast over pressure. It leaves no external injuries, but damages organs like your ears lungs and gastrointestinal tract. Now acoustic weapons are actually being developed. But usually they're for nonlethal purposes. There's been talk of acoustic bullets to burst eardrums incapacitate a target or even kill them. Others claim that an infra sound generator could also be lethal, but there's been little practical evidence of such weapons so far the closest we've seen is a long range acoustic hailing device developed by the Elrod corporation, which can cause hearing damage from up to fifty feet or fifteen point two four meters away, some shipping companies have started using these devices as seaborn defence against pirates. There is one device. However that could most definitely kill you with sound. It's not a weapon, but the European Space Agency has developed a huge. Air horn that they use to test satellites and spacecraft using nitrogen gas to produce sounds up to one hundred and fifty four decibels they blast objects to make sure they can withstand the noise of a rocket launching the ESA themselves are so concerned about how lethal this horn is they've surrounded it with half meter thick walls made of steel reinforced concrete coated with an poxy resin to reflect noise back into its chamber, but Christian you're asking didn't you just say that the threshold for death is between one hundred and eighty five and two hundred decibels. It's true. I did. But the ESA believed that prolonged exposure to the one hundred fifty four decibel horn will kill you as well. Probably rupturing, your eardrums vibrating your eyeballs, and destroying you from the inside out if you're not dead, you'll probably wish you were. Episode was written by Christian and produced by Tyler clang, if you miss Mr. severe checkout, his pop culture podcast super context available wherever you get your podcasts. And of course for more on this and lots of other topics. Visit our home planet s to work dot com. In two thousand four in a tiny town. A young woman named Rebecca Gould was brutally murdered nearly fifteen years later her killer is still on the loose. It's just really surreal walking around. So much here too is out there and yell deep rant, dude. I'm Katherine towns. And this is Helen gone binge all of season one now at apple podcasts or on the iheartradio app or wherever you listen to podcasts."