Crystals with Tyler Thrasher | SciShow Tangents Podcast

In a universe of chaos, one scrappy form of highly-ordered solid matter dares to be different: crystals! And crystal expert Tyler Thrasher is here to tell us all we need to know about them!
Want more Tyler Thrasher (and who wouldn't?!)? Check out tylerthrasher.com to learn more about his myriad of other projects!
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While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen
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[@MayukhBose]

“Everything is always a little bit hard” and the tantalising sequel “My cheeks hurt”

[@mrjoe332]

It's the "Inevitable Friction" trilogy

[@bln8285]

This episode was really cute and funny. Tyler added a great vibe.

[@dstinnettmusic]

The need three “contestants” for the same reason every game show has three contestants.

[@katetoolate234]

20:20 it's so true! When I buy a new crystal, I JUST wanna know it's physical properties and if it is safe to put in water and such and all Google wants to give me back is stuff about healing crystals. 🤦🏻‍♀️

[@SciShowTangents]

genuinely one of the hardest topics i've researched because of this!

[@IceMetalPunk]

Fun fact related to that Science Couch question: quartz clocks are not only used in watches. Every modern computer, from microcontrollers to supercomputers, use quartz crystal oscillators as the clock signal that keeps them in sync and running. Your processor speed is based on the frequency of the quartz crystal on it. When you turn on the computer, a small bit of electricity is sent to the crystal, which deforms; when it "undeforms", that creates a voltage that acts as the clock signal. The clock signal is amplified and sent back into the crystal, looping the process over and over, creating regular voltage ticks that tell the processor and anything connected to it when to execute the next instruction. This is why basically any electronic device has an actual clock on it, since they already use a clock to run themselves anyway.

[@Andre_the_Lion]

Every clock* needs an oscillator. And a power source. It gets interesting to think about every timekeeper you see. Most PC motherboards have a coin cell battery to keep the quartz clock running when the computer isn't powered. How does it work in your microwave? In your car? Most things use quartz crystals these days, but some plug-in devices will count AC power cycles and cheap, short term timers like in your kitchen or on some appliances still use mechanical balance wheels for oscillators. You can almost always hear this last type ticking during operation, like egg timers. *some things that display time aren't actually clocks. GPS receivers are antennas that by their nature receive time signals, so they can display the time using the clocks on the GPS satellites. Networked electronic devices can similarly report time they received from other sources.

[@jess53nz]

Crystalline vs amorphous: seated vs mosh pit at a concert! Totally be easier for me to remember now !

[@SciShowTangents]

Hank uses a great mosh-it metaphor in an upcoming episode that made thermodynamics make sense to me!

[@jess53nz]

@@SciShowTangents i look forward to it!

[@Rufflesandrage]

I made it on the Science Couch and it felt AMAZING! Thank you!!

[@sunnyartsy1263]

So very glad you invited Tyler! I've been following his instagran for a while and bought a crystalised flower from him last february. Making science cool everyday is really amazing!

[@mrjoe332]

This was one of the best episodes ever. The energy was amazing and hilarious all throughout.

[@Andre_the_Lion]

Regarding quartz timekeeping: there is a property of timekeeping whereby the frequency of the oscillator determines the smallest unit of time you can measure, limiting accuracy. Mechanical watches are generally around 2-5 hz, while quartz are usually running 32,768 hz. Actual acoustic tuning forks were used somewhat commonly for a brief period as in the Bulova Accutron running 300 hz iirc, and atomic clocks are in the Ghz ranges. This is the main reason they are more accurate. And Ceri, it is actually the escapement that you hear in a longcase clock as well, the pendulum is the equivalent of the watch's oscillating balance wheel, both have escapements with similar geometries, but the longcase clock usually runs 0.5hz and has heavy lead weights, so it ticks loud and slow.

[@fossilfighters101]

this person clocks

[@ReikaSensei]

1964 is the Tokyo Olympics, Hank. In preparation they would have had opportunity to pitch a Japanese product to the Olympic Committee. I guessed the correct year also because Seiko is a Jpn company and I know when Japan hosted.

[@mackbrown1002]

Been following Tyler on ig for years what a great ep

[@SciShowTangents]

He's so great

[@augustethompson3964]

“The best gardeners have just killed more plants.” -Jess Sowards

[@90sMillenial]

Candied Cadavers is a term I had never thought I would hear.

[@poozlius]

Crystals!

[@jebus456]

'our pee has gotta be a little different' QOTY

[@thomaswade3072]

To their credit, honey is antibacterial

[@JonPITBZN]

The craziest thing about golf tees to me is that they're made out of WOOD of all things! People made things out of wood in buckle-hat witch-hunting times. You're telling me it took them 400 years to figure out how to make a pointy little piece of wood that flares out at the end? I could whittle one!

[@tracievestalharris7297]

So many urine crystal potentials: triple phosphate (aka struvite), calcium oxalate dihydrate & monohydrate, ammonium biurate, bilirubin, calcium phosphate, cholesterol, cystine, uric acid, tyrosine, drug crystals.....urinary obstruction due to crystals is a very common emergency in vet medicine

[@llsilvertail561]

I'd swear I've read a fanfic titled "Inevitable Friction", but I have no idea if that's just my mind making stuff up or not, and I'm not about to go check and dispel my [insert word that fits better than "incorrect assumption" here].

[@santoast24]

Renewable, sustainably sourced, non-GM all natural eco friendly no animals harmed in the making of this product bat poop Guanine makeup is maybe the ONLY makeup you will get me to wear

[@RowieSundog]

Pierre & Jacques Curie stuck out to me cos i heard the name of Maria Skwodovska Curie's husband in another episode, and yup its the same Pierre Curie

[@golalehkamran9529]

The blue lagoon is a man made pool with the run off their volcanic water purification. So that can’t be it. Whatever happens at the blue lagoon is not a naturally occurring event.

[@leelarson1952]

"I feel drawn to the pee." -- Sam. Could this foreshadow next year's p4a Tangents project?

[@ianitus777]

I vote peepee crystals

[@BadGirlFan]

For the cadaver question my guess was literally based on "a spoonful of sugar makes the medicine go down" 🤣

[@ponyote]

Corn dog crystals... wow, thanks for that mental image Sam.

[@alexstauffer3359]

Here here, for Wristwatch Revival! My favorite watch repair channel.

[@Raushunn]

I told my wife about the ingredients in make up she told me to get off the Internet.

[@AlKohaiMusic]

Oh my God, my favorite meme from an amount of years ago that I don't want to google cause I'll probably just end up feeling old

[@mrjoe332]

8:55 for real, they could all be just making stuff, I'll probably never fact check any of this

[@amandajones661]

This is my favorite guest so far.

[@SecondFinale]

Are the audio cut-outs caused by overactive noise cancellation?

[@FSMface]

I would also invest in poop makeup, jussayin 🤣

[@julescaru8591]

Love you guys 💕

[@takumi2023]

Everything is a little stuck?

[@erebedragons]

CERI! Is that Jarvis merch? I love it!!

[@ceriley]

yes!!! it's so cozy and good :)

[@janusatthegate6201]

Will we breed plants that are super indoor critters?

[@janusatthegate6201]

In ancient times humans ate the same things beasts ate.

[@janusatthegate6201]

Ante means before.