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GOOD PEOPLE Book
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Technology

Sascha Kohlmann

Headphones can protect you from the annoying noises of the world, but they come with their own risks.

There was a time not too long ago when teens blasting music too loudly was everyone’s problem. Parental cries of “Turn down that damned music!” seemed to punctuate every day. But with the advent of tiny, high-performance headphones, the volume battles have become personal and much more challenging to monitor. Now, as more people are plugging into music anywhere and everywhere with what experts call personal listening devices (PLDs), alarms are being raised about a new trend: unsafe listening practices that could lead to widespread hearing loss in young people.

A recent global study conducted by researchers from the Medical University of South Carolina and colleagues worldwide examined the listening habits of people aged 12 to 34, focusing on exposure to loud sounds from earbuds and headphones as well as at entertainment venues like econcerts, clubs, and festivals. The findings reveal that unsafe listening habits aren’t isolated; they’re a global issue affecting millions of young ears worldwide.

Loud music, quiet consequences

The study collected data from over 19,000 individuals across 33 studies and found that roughly 24% of young people are likely using their PLDs at unsafe volumes. When it comes to loud entertainment venues, that number rises significantly, with around 48% of attendees exposed to potentially harmful sound levels.

Key Findings:

  • Personal Listening Devices: 23.81% of young listeners engage in unsafe listening practices via headphones and earbuds.
  • Entertainment Venues: 48.20% of young people attending concerts or clubs are exposed to volumes that can damage hearing over time.

The World Health Organization’s guidelines indicate that listening above 85 decibels for long periods can cause irreversible hearing damage, and many concerts and clubs easily exceed this threshold. With more young people tuning in to louder sounds, often for extended periods, the cumulative impact could be life-altering.

"Unsafe listening practices are highly prevalent worldwide and may place over 1 billion young people at risk of hearing loss."

— Lauren K. Dillard, lead researcher

A hidden health crisis affecting over a billion people

The most striking takeaway from this study is the sheer number of young people at risk. The researchers estimate that between 670 million and 1.35 billion adolescents and young adults worldwide could be on a path toward hearing loss due to unsafe listening practices. This staggering number makes hearing damage a serious, though often overlooked, global health issue.

Hearing loss often progresses gradually, with early symptoms easy to miss. Many don’t realize they have hearing issues until the damage has already affected their quality of life, including their ability to understand speech in noisy settings or fully enjoy music at safer volumes. Dr. Lauren Dillard, the lead researcher, highlighted the urgent need for action, emphasizing that unchecked, this issue could affect a generation.

Tech steps in: New solutions to address unsafe listening

A pair of Apple AirPods.New features might turn the source of this problem into one of its solutions. aconcagua

Recognizing the growing concern around hearing damage, some tech companies are stepping up with innovative solutions to help protect users. Apple, for instance, has recently introduced new hearing health features in its AirPods and iPhones that focus on reducing noise exposure and enabling easy hearing checkups.

  • Hearing Test in iOS Health App: Apple now offers an in-app hearing test available on the iPhone, allowing users to assess their hearing from their device, with results saved in the Health app. Users can even upload professional hearing test results for comparison. Designed to prevent gaming, the test uses randomized tones for accuracy, helping users better understand their hearing health over time.
  • Hearing Protection with AirPods Pro 2: With the recent iOS 18.1 update, AirPods Pro 2 offers hearing protection across all listening modes, including Noise Cancellation, Transparency, and Adaptive Audio. These settings help reduce exposure to overly loud sounds, adding a layer of defense for users in noisy environments. However, extreme sounds like fireworks or gunfire are still beyond its intended scope.

As Apple introduces these features, other manufacturers are likely to follow suit, with industry experts suggesting that hearing protection technology will soon become a common offering across high-end audio devices. These developments are a promising step, as technology starts to play a more active role in helping individuals protect their hearing.

Protecting your ears in a loud world

With sound technology getting smaller, sleeker, and more powerful, it’s easy to slip into unsafe listening habits. But a few small changes can go a long way toward protecting your hearing. Taking regular breaks, lowering the volume slightly, and considering noise-canceling headphones are all small steps with significant benefits.

This study’s findings are a wake-up call. Hearing loss is often preventable, but once it sets in, it’s challenging to reverse. By spreading awareness, encouraging policy changes, and practicing safe listening, we can help protect our ears and preserve the music we love—at safer volumes—for years to come.

We were told this was an absolute no-no.

If you grew up in the 70s or 80s, there was one rule:

No metal in the microwave!

None. Nada. Don't do it, ever, under any conditions. If you put metal in the microwave, it would spark and explode. That was how science worked back then.

So you can imagine the surprise that Gen Xers and millennials who might have been browsing Reddit this week are feeling.

A Reddit user recently shared a confusing warning label on their microwave, seemingly encouraging them to leave a (presumably) metal spoon in any liquids while heating.

The illustrated sticker shows two cups of liquid. The plain cup — with only liquid inside — has an X crossing it out, as if to indicate you're not supposed to microwave a plain container of liquid. The allowed version, confusingly, has a spoon sticking out of it as the liquid bubbles! Last time I checked, most spoons are metal.

So what exactly is going on here?

Is the microwave manufacturer actually... encouraging us to microwave metal?

Some users were baffled and began questioning their entire existence:

"We grew up in the 70s being told to never put metal in a microwave. Hard to learn that," wrote u/dustin91.

"Growing up in the '70s, we were drilled to never put metal in the microwave. It's tough to shake that mindset," said u/GoodnessEmma_.

In fact, the OP was not the first person to be confused by this sticker on their microwave. Posts just like this one are surprisingly common.

Luckily, there's a simple explanation for this counterintuitive sticker: Sometimes, under certain circumstances, putting metal in the microwave is perfectly OK.

But before you go microwaving your whole silverware drawer, let's hear out the scientific explanation.

"[The] electromagnetic activity [in a microwave] can do a number on metal. The oscillation of the microwaves can produce a concentrated electric field at corners or an edge of a metallic object, ionizing the surrounding air," which creates popping, sparking, and arcs of electricity. That's according to a post on MIT's "Ask an Engineer."

However, when a metal object in the microwave is thick and or smooth, with no sharp edges, there's little risk of a fire breaking out.

A YouTuber named ElectroBOOM actually (and bravely) tested different metals in the microwave.

Smooth, thick metals (like spoons) did fine, even when he used two spoons close together or touching. Things with sharp edges (thin strips of foil, a fork) did not, and sparked or caught fire quickly.

It makes sense the more you think about it.

A lot of foods (like Hot Pockets) come with a metal or foil-lined tray to encourage heating. Your microwave may even have a metal shelf inside!

The confounding sticker suggests leaving a spoon in any liquids to prevent superheating — which can cause scalding hot water or other liquids to explode.

In some cases, microwaving a liquid can cause it to heat beyond its boiling point — without actually boiling. (This is especially likely if you were to heat a liquid without any "impurities," like distilled water.) When superheated liquid is disturbed (by sticking a spoon in, adding a sugar cube, or just sloshing it around) it can explode and scald you.

Mythbusters tested this scary idea many years ago — and confirmed that it can happen!

Leaving a spoon in the water creates "nucleation points," or opportunities for bubbles to form, rise to the surface, and release heat — which is how normal boiling is supposed to work.

It doesn't HAVE to be a metal spoon, of course. A wooden spoon or chopstick will have the same effect.

So now we know that some metal in the microwave is OK. But there are enough caveats that you really ought to know what you're doing before you try it.

Having done the research, I can see now why our parents and teachers figured it was just safer to tell us to never put any metal in the microwave under any circumstance.

We believed a lot of stuff we were told as kids in the 70s, 80s, and 90s. Black belts in karate had to register their hands with the police as deadly weapons. People put razor blades in Halloween candy and apples all the time. We were very likely to encounter quicksand at some point. Acid rain would kill you. Fruit could grow in your stomach if you swallowed seeds. Alligators lived in the sewers.

Frankly, "never microwave any metal" was the least crazy thing we were told back then. The truth is a little more complicated, but it kept us safe at the time, right?

Microscopic images satisfy TikTok commenters' natural curiosity.

Ever wondered what an espresso looked like under a microscope? How about a pumpkin? Octopus sucker?

Thanks to pharm tech college student and TikTok star of science Justice Dodson, all of your micro-curiosities can be satisfied. And wow, it is crazy to look at our big, big world through this teeny tiny lens.

Dodson’s channel, where he takes requests for items to go under a microscope, is a unique blend of fascinating, educational and grossly pleasing. With more than a million followers, this kid gets a ton of requests. But here are some of the nanoscopic gems I found particularly interesting:

Corona virus

@justice.dodson

Reply to @user646472910474810 Corona or Corona? ##foryou ##microscope ##science ##TargetHalloween ##MakeItCinematic

♬ Pink Soldiers - 23

It’s probably no surprise that many, many, many people ask to see the coronavirus up close and personal. Although Dodson does a bit of a bait-and-switch here.

He starts the video by letting us know, “I have Corona, so I can finally show you what it looks like under a microscope”

… and then proceeds to pull out a Corona beer bottle.

This was still a teachable moment, because we learned that the virus is way too small and would need a much more powerful device to be visible. Something called an electron microscope. Sounds like something from a Marvel movie.

As one person commented, “I was excited, disappointed, and informed all in the span of 30 seconds,” and that accurately sums it all up.

Pepperoni

@justice.dodson

Reply to @that_trippy_chick22 Cow + Pig = Pepperoni ##foryou ##microscope ##velabco ##wehavethemeats ##CurameChoreo

♬ #3 - Aphex Twin

It looks like pimply skin, then a gaseous planet. Don’t watch before pizza.

Octopus sucker

@justice.dodson

Davy Jones vibes 🐙 ##foryou ##microscope ##velabco ##ocotpus ##NissanShowUp

♬ Davy Jones Theme (Pirates of the Caribbean) - Je Suis Parte

First off, an octopus is already fun to look at. But Dodson took a piece of an octopus arm (I’m guessing from a market?) and under the microscope it looks even more like an alien creature.

Bonus points for creativity, as he used the “Davy Jones Theme” from "Pirates of the Caribbean" for his audio. I giggled at that.

It’s also great to see that Dodson is inspiring other scientists-in-training, as many share their appreciation, knowledge and enthusiasm in the comments.

One person wrote, "hoping to be a medical lab scientist one day, love your videos."

Bug squishing

@justice.dodson

Reply to @defender2090 I found it like this all shriveled up :( ##foryou ##microscope ##velabco ##123PandoraME ##TakeTheDayOffChallenge

♬ The Banjo Beat, Pt. 1 - Ricky Desktop

People really, really, really like the squishing ones.

Halloween pumpkin

@justice.dodson

Reply to @user646472910474810 Happy Halloween! 🎃 ##foryou ##microscope ##pumpkin ##velabco ##science ##PUBGMOBILE

♬ Halloween Theme - John Carpenter & Cody Carpenter & Daniel Davies

Holy moly, that crazy transformation from 100x to 400x. I will never think of jack-o-lanterns the same way again.

Blood + wine

@justice.dodson

Reply to @hnnh.cstr Red wine, extra red 🩸🔬 ##velabco ##microscope ##science ##wine ##JifRapChallenge

♬ Je te laisserai des mots - Patrick Watson

In a beautiful cascade, the red blood cells meet their demise, due to the alcohol.

So yeah, in case you were considering it, don’t inject red wine!

Dollar bill

@justice.dodson

Reply to @.seanm RIP George ##foryou ##CowboyBebop ##MunchiesWithTubi ##microscope ##velabco ##science

♬ where is my mind - jewel :*

I was half hoping for some kind of hidden clue-like message that “National Treasure” always promised us. But still quite cool to see.

Especially toward the end where you see how money is a bunch of fibers seemingly sewn together. There's a metaphor for capitalism somewhere in there.

Mold … from a water bottle

@justice.dodson

##stitch with @noelmulk0 Do you have mold in your water bottle? 🔬🔬 ##foryou ##microscope ##velabco ##mold ##k18hairflip

♬ original sound - Justice Dodson

If there’s one thing I’ve learned from Dodson's TikToks, it’s that nowhere is safe.

Water bear

@justice.dodson

Reply to @nikki_smiht LOOK AT THOSE LITTLE CLAWS 🥺 ##foryou ##microscope ##velabco ##MyBrawlSuper ##waterbear ##tardigrade

♬ Elf - Main Theme - Geek Music

Found inside a little puddle on moss and dirt, and with a bonus tardigrade egg!

This is one of the cuter ones, most definitely.

Espresso cream

@justice.dodson

Reply to @user646472910474810 lil bubbles ##foryou ##microscope ##CustomersMostLoved ##velabco ##DoTheJuJu

♬ original sound - джузель

It basically looks like a bubble bath, making me love coffee even more.

Banana

@justice.dodson

Bananas making bananas 🍌 ##foryou ##didyouknow ##microscope ##velabco ##SaveIt4TheEndZone ##banana ##cells

♬ Eleanor Rigby - Cody Fry

Why no, Dodson, I did not know that banana cells look just like little bananas. But I certainly can’t un-know it moving forward.

Giphy

We all have a science nerd inside, an inner curiosity that wants to know how things work, both big and small.

That’s what makes TikTok truly amazing for its bite-sized glimpses into subjects we might not otherwise be aware of.

Trust me, I did not wake up thinking I’d go down a rabbit hole like this one, but I’m so glad I did. Thanks Justice Dodson for sharing your passion and for helping us see the world in a whole new way.


This article originally appeared on 12.29.21

Julian Worsham gets a new cart.

Six-year-old Julian Worsham of Beaverton, Oregon is like a lot of other first-graders: he loves Super Mario and Taekwondo. But he has achondroplasia, the most common form of dwarfism, and goes to a school that wasn't built for kids his height.

"He's born into a world that just, in some ways, is not built for him," Julian's father, Brett, told WHAS11.

His mother did a walk-through before his first day at school to make sure he wouldn't run into any problems because of his height but forgot to check the cafeteria. [We] "noticed that where the food was, was right at his head," Heather told the Beaverton School District. Then, to make things more of a struggle, he had to carry his tray outside to the lunch benches.

The school made him a makeshift cart out of an upside-down milk crate on wheels to help him transport his lunch from the cafeteria to the benches.

"When I saw it I thought, 'Wow,'" said Enedelia Mottram, who's served lunch for the school district for 18 years. "I just wanted to help Julian, because I mean his head barely reaches the lunch line. He can't see anything."


Julian's first cart wasn't cutting the mustard.

via Beaverton School District

That night, she talked to her husband, James, a metalworker, to see if he could come up with something better. He got his team together at Wright Manufacturing in Portland to create a new cart that allowed Julian to transport his lunch tray and see over the counter.

James told the Beaverton School District that he wanted to make something that Julian would be "proud to push around."

James and his team put together a badass cart with adjustable, handlebar grips just like a motorcycle that has a stool inside so he can reach the countertop. It is adorned with flames and a personalized license plate that says, "JULIAN."

Julian's parents were blown away by the care and creativity that was put into creating his cart.

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"They took the time to get those license plates with his name, which is just like, they just really put a lot of heart into it. So when I saw it, the first thing I saw was actually a picture of James and his team who made the cart and I cried. It's just such a sweet thing," Heather said.

Julian loves the license plate and the flames and is now able to grab his lunch and get out to the benches in style.

"He's independent now," said Mottram. "Before, a staff member [would] have to be there to help him," she said.

Heather hopes that the story will inspire others to reach out and help other people in need.

"There's just wonderful people in this world that, you know, they have their eyes open. They're seeing needs that need to be met and they're meeting them. So I hope that other kids can get their needs met through this," she said.


This article originally appeared on 11.3.21