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Weird Science-The Sound of vomit

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science and exciting world of research imagination and the willingness to question everything join us on a strange Journey as five unlikely experiments together into one astounding Discovery changing our lives forever open a door in your mind and step through into the realm of weird connections in this episode how the world's most revolting irritating and annoying noises could become an instrument to help control a turbulent world all in just five weird connect this journey begins with this man recording the sound of someone losing their lunch sound of his own nose sniffing and the motion of an apple as for being sick to his stomach he didn't do that himself he hired an actor to do it Safari good for Cody who did all the falling down we we slept Darlington baked beans into a bucket Trevor Cox is not a Hollywood sound effects wizard he's a professor of Acoustics at the University of Salford in England although it may sound a little off-beat he studying a serious subject but I looked into what was signed in the world was leave the room it's not really very nice we don't know why are you respond so strongly to the Suns just wanted to know why some noises spark such a negative reaction into three categories disgusting the most grading and the most infuriating sounds known to humankind Cox ask people to rate them on a scale of bad truly bad and just plain awful for once no 2006 is the worst thing you've ever heard 5 and a half at first he limit is expired went to the Sulphur University campus but then he went worldwide internet the cacophony of nasty Sounds playing through computers result in a structure of the worst sounds Cox's 2:22 o'clock at number 16 a barking dog at number 14 a ringing cell phone at number six a badly played violin and in second place microphone feedback so what is this music identify as the world's worst sound number one we have the sound of someone throwing up we find vomiting nausea because of she can call to discuss three action bullet is full of disease is it. But what about the some sounds are unpleasant because they remind us of paint experiences just hearing the twirling of a drill is like sitting in the dentist chair when I hear that siren talking soft almost feel the dentist going in for the kill increasing pain so that's a really painful associations and 1/8 discussed explain the most of the sounds on the countdown but as cox.com sounds didn't fit into either revulsion or Association categories for instance why would something like Styrofoam rate so high on the list I mean that something is cause you to ask me something nasty so it kind of seems to be much lot either intrinsic sport is about the song called you the actual sound itself other squeaky sounds like microphone feedback and badly played violins couldn't explain by discussed or Association Cox conclude Ernie's cases the sounds that was disturbing it was their pitch Sound Vibrations tickle the hairs that line the basilar membrane in our cochlea sending signals to our brains process this sound brain sometimes find high-pitch sounds confusing if we take a nice Sultan song note there's lots of different parts of a cell membrane which I'll try to move in different ways at the same time the high rate of vibration is simply too fast for the inner ear to cope with voices are there still no Spanish for let's just say big beans in the bucket but how would Professor Cox's Discovery Health the search for the worst sound in the world could have a calming effect on an unruly mob but in just 5 connections were going to find out how would lead to the Sound of Silence we began our Strange Journey with repulsive noise now we had two whales and an even more challenging problem repulsive Behavior security expert Howard Stapleton lives in South Wales professional skills when he was harassed at a local grocery store by gang of teenagers wanting can I send my then something about to go and get some milk she came back into this light with no milk I lost what happened and they're being about group of 10 to a decimal 12 to 15 year old boys hanging around outside which one's been shabam the following day I went and spoke to the actual partner and he knew I was in security industry sales math installing cam an iPhone than the public cameras is now that's what you would do is end up with nice footage of kids behaving badly and I'm fortunately she got very precise position is very little Theatre which is converter necessity is the mother of it tension and Stapleton remembered an unpleasant experience from his own childhood that might solve the problem I didn't remember back to when I was about to them 12 years old for tonight Factory but my father was the bustle I used to take with a welding and put one on strike the sound of the ultrasonic welding had been unbearable young Howard so why wasn't anyone else in the room reacting potato what's the matter I can't stand it. when you said you went and looked around the rest of the group and everyone just said that shaking my head stay woke up freaking clue as to what I was talking about the sound they were experiencing known as presbycusis literally how you relate to hearing loss on the first call to the hearing to go with that increase the ability to hear the high frequencies we lose some of the tiny hairs that frequency receptors are the first to go so the older you get the less you can hear high-pitch sounds the same sounds that we all inherently state to determine if he could come up with a device I received by the Troublesome teenagers then he could deter them from loitering along storefronts where is it is kitchen table designing the machine the highest frequencies in and I've drank the kids sing they would tell me how annoying the noise was sent out a meal I could hear it for 3 Days Stapleton using a test subjects what would be the sound that drove them distraction finally he found it sounds so horrible that no teenager would be able to. now all that was left was to see if his mosquito would bite he got the opportunity after receiving a call from the owner of the store where his daughter had been her on that one Samsung write down that I'm not going to cry for stress Cypress open on Saturday in its home 6 minutes horrible noises coming through me Thunderman have an awesome wonder why does the teenagers steal the principles device will set the tone for some sound news science but what's that got to do with this man the long-distance Whisperer skin weird connection number the world's worst sounds list connection number 2 and now connection number 3 we put the spotlight on Channel high frequency sound waves to a single is an unassuming tigrat with the powers of a superhero he can directly in the ears of patrons at the local library from way up in the balcony I'm paying cheese this seemingly superhuman feet with a gizmo he invented called the audio spot it's a speaker that focuses sound at a specific Target Pompeii was your average teenager always with a Twist he had a gift for engineering and design he made an incredible scientific breakthrough that begin he was working a summer job at an audio company become interested in really what the shortcomings of traditional loudspeakers were he realizes that regular loudspeakers directional sound allowed speaker is like the lightbulb the sound is created really goes everywhere the young engineer wanted to direct sound just like a laser pointer that you can fuse cats with out that mathematically there are only two options to make speakers act like lasers used gigantic speakers or only broadcast high-frequency Audio Waves the same frequencies Howard Stapleton use to deter teens in Connecticut Shinto the reason lies in the way audio waves travel through the air low-frequency Audio Waves like bass sounds have more time to spread out over a larger area as they travel short frequency waves reach their targets faster so to get a speaker to be found across the room you can only use high high frequency sounds frighten people away and that wasn't what Pompeii was trying to do so he needed another option in order to create a Sound Source that's directional either you need to limit it only two extremely high frequencies or you need to have a loudspeaker that's tens of meters across when create a speaker that big certainly the Bemis that big so it doesn't do very well when you want to Target one person or one small area it seem that pompey's project was doomed it's very rare and science to get to a stopping point where you real flies that corner the math and according to all known Theory something's just not possible their doctoral program and direct them toward the next new possibility using ultrasound waves to create his audio beam ultrasound waves are even shorter than Howard stapleton's high frequency not even a teenager could hear them and they're also makes them highly directional if Pompeii found in freezer be several sleepless nights later Define the math work there's this Theory there is always moving even is still rude tell these air currents would strike the ultrasound waves and convert them into frequencies we can actually here since the ultrasound waves are highly directional the resulting of the audible sound was perfect abilities of this device work endless one of the fun things we used to do is get up on the balcony five stories up in our laboratory building and in the sound down at people walking below sometimes we beam Fashion Glass sounds of the Caterers walking by with dishes I would whisper in people's ears send it was all great fun most of the time what you did yesterday directional sound during Pompeii at Union Vader award and the year of mini Adventures but can it help restore calm when the pieces. and what is the audio Spotlight have to do with what this man is doing in his car as we ride the audio way too weird connection number for in our first three weird connections sounds signs like the revolting to the irritating chewy precise channel of disturbance now we're just two steps away from a new sound control this is some idiot he's on a mission to create the most powerful speaker in the world to avoid the annoying is Neighbors he's test on a deserted Airfield sound just like lots of it classical music was intrigued by a new kind of audio amplifier the soap planar magnetic speakers speakers card is here that I got to hear cost $6 it was a very very small very very low power but it has unbelievable intelligibility you just couldn't turn it up very loud that's when I asked if we could make this thing like on steroids and have this thing powerful we could take over the music unfortunately the bigger the worst they sounded for this complex problem all speakers side by side giant loudspeaker one of the very interesting characteristics of our technology is that is called dipole that means that the speaker sends out as much energy in this direction as it sends out in that direction so looks like two speakers in one the resulting creation was also more directional each individual small speaker transmits its own sound wave as each which spreads out its neighboring waves and the resulting sounds and more directional Force Base in Southern California ultimate test if it was enough enough for the Moment of Truth from more than half koala sound decibels near the range of human pain speaker system one of the loudest and most Direction devices ever built the largest speaker that we've ever created was is what we call are 96 is capable of sending sound 56000 ft for 10 Mi perfectly intelligible civilians Innovation for outdoor concert goers bring list of the final Connection in this journey music lovers are not the only fans of some idioms new technology the United States military is training soldiers to use as magnetic as a non-lethal weapon this situational training exercise brings together all four weird connections the high-pitch sounds that Professor Cox determined are inherently of Aura to humans in connection won the ear splitting tones perceptible only to the young and section 2 and the audio that can be being too specific listeners then boosted too uncomfortable levels as seen in connections 3 and 4 non-lethal powerful sound deterrent large walls speakers can raise the ear splitting tone to a painful decibel level some of them will just cover their ears the majority of them will leave the area they just don't want to deal with that type of military experts estimate lethal weapons can potentially save hundreds if not thousands of lives and hot spots around the world you can get that crowd to disperse anything that would keep us from having to raise our level of forest protectors people on both sides the piercing high-pitched Cry of non-lethal audio Weaponry may help well violence and disperse angry mobs without a single shot having to be fired in five weird connection we have found the very best use for the very worst sounds in the world if all this comes from the sound of throwing up imagine what else is possible

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