Lasers | SciShow Tangents Podcast

In all of science, there are very few things conceptually cooler than lasers. A beam of light you can use to blast aliens? Heck yeah! But are lasers actually as cool in reality as they are in science fiction? Probably not! But I guess you'll have to listen to find out for sure.
Want more SciShow Tangents? Check out hundreds more episodes of our podcast here: scishow-tangents.simplecast.com, or wherever you get your podcasts!
Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!
And go to store.dftba.com/collections/s... to buy your very own, genuine SciShow Tangents sticker!
A big thank you to Patreon subscribers Garth Riley, Tom Mosner, and Mike A for helping to make the show possible!
Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions!
While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen
#scishow #podcast #comedy #science #education #scishowtangents
[Trivia Question]
Universal Product Code first scanned in grocery store
www.smithsonianmag.com/innova...
[Fact Off]
Laser cooking of printed chicken
• Robots that Cook: prec...
www.scientificamerican.com/ar...
Laser lightning rod for deflection/protection
www.unige.ch/communication/co...
www.nature.com/articles/s4156...
www.nssl.noaa.gov/education/s...
www.usfcam.usf.edu/cam/exhibit...
[Ask the Science Couch]
Long-distance lasers and masers
www.faa.gov/about/initiatives...
spie.org/news/12-09-laser-ran...
ccom.unh.edu/theme/lidar
www.icrar.org/megamaser/
arxiv.org/abs/2204.02523
[Butt One More Thing]
Low-level laser therapy for butt (or any) tendons
www.ncbi.nlm.nih.gov/pmc/arti...
my.clevelandclinic.org/health...
www.utahorthopediccenters.com/...

[@mrjoe332]

It's so nice we finally get to see _biblically accurate_ Ceri Riley

[@ponyote]

Be not afraid.

[@isthatyoucedric7854]

S TIER COMMENT

[@ceriley]

*~*~ i aM nOt to Be peRcEiVEd ~*~*

[@leelarson1952]

@@ceriley Ceri the "moonolith." Cue 2001 theme. "Woo, she went to MIT, huh?" "Oh, she was sad, huh?" Priceless. 👽

[@EirynKatherine]

Sam, the negative thing you may have hear about becoming a tree was probably to do specifically with tree urns used for cremated remains. Because cremation doesn't leave any organic matter 'you' are not really becoming a tree, it's purely symbolic. And fire based cremation isn't great for the environment. But if you go for natural burial I think you can find a natural burial plot that will plant a tree in you. And if you got for natural organic reduction aka human composting the dirt that becomes of your body can be used to plant a tree. Sadly, NOR is only legal in a handful of states at the moment. I really hope it's legal in my state when I die because I really want to become a cubic yard of soil. Unfortunately there is not a death care option in the US for feeding your body to animals, though if you do go for body farm there's a chance something will eat at least part of you. Also, Hank, there isn't a death care option for becoming a skeleton, which sucks because I would love to will my skull to someone.

[@KOKO-uu7yd]

Soul-sib? That you?!? 😯🤔😍 👏👏🙌👌🤩😉

[@peterjf7723]

A friend had a natural burial. This is simply the choice to be buried in an environmentally friendly, natural woodland setting rather than a traditional cemetery plot. The Natural Burial Woodland he used is situated at the top of Arnos Vale Cemetery adjacent to Arnos Park in Bristol. Burials must take place in coffins or shrouds made of sustainable biodegradable materials such as woven materials (bamboo, willow, seagrass, wool) and cardboard. You don't need to use a coffin; many people prefer to use a shroud.

[@dstinnettmusic]

Ceri is here with that “be not afraid” energy

[@DCII]

Imagine a 3D printed pastry with the perfect amount of butter and filling and just flakiness layered throughout or latticed throughout. That is going to be the ultimate thing someday. It'll probably start out only in fancy restaurants, or maybe it'll go commercial right away who knows.

[@ZedaZ80]

3:27 "Can you get to decide to be a skeleton?" yissss

[@FSMface]

Ceri is now a Mega MASER! It's happening! 😂

[@SciShowTangents]

she's ascended

[@paulkinzer7661]

Retroreflectors are really cool. They're just prisms that are I think are perfect cubes, and the effect is that light shined into them shoots straight back along the path it came in on, no matter what direction the light came from. That means, if you look into a big enough one, you'll see a reflection of the center of whichever eyeball you are looking at it with, no matter how you move either the prism or your eyeball. I saw this when I looked into a spare Apollo retroreflector on display in the Visitor Center at the McDonald Observatory, in West Texas. This was back in the 90s, so I'm not sure if they still have it on display in the new Center I know they built. It was a freaky weird experience. Another fun retroreflector fact: little tiny cubes are used in paint to make the reflective kind used on road signs and the stuff they make reflective clothing out of.

[@LawTaranis]

The fact that this opening was just before your diagnoses is poetic, Hank. Also, very glad you are alive because you bring be joy. ❤

[@empichel5690]

Yeah, Hank, you can be a classroom skeleton! You just have to arrange for those beetles and articulation yourself and it's very expensive. Maybe Caitlin doughty would help you organize that

[@williamjohnson5022]

Some bits of meat Hank are quite old is a phrase and concept that will live in my mind for some time...

[@mrwizardalien]

I read this before watching the video and i could never in my life have guessed how this ended up being relevant

[@GoingtoHecq]

Hank's skeleton in a classroom would still be Hank working as a science communicator.

[@peterjf7723]

I did meet a forensic pathologist who said that after their death they wanted their skeleton to be defleshed and articulated to become an anatomy teaching model. Ideally to be used at their old university.

[@TheAttilia]

All chicken nuggets are technically dinosaur nuggets...

[@JHaven-lg7lj]

We need to start promoting the use of the name Microwaser immediately, it’s beyond perfect

[@dianewallace6064]

In an episode of the Big Bang Theory sitcom, they shined a LASER at the mirrors on the Moon.

[@antybee2736]

If you shoot a laser in someone's eye are you blinding them with science?

[@djschultz1970]

Good episode. One of the best. I might be sleeping in a tree with a Hank skeleton for 4 1/2 hours on TikTok

[@gordonwchas]

Good timing with this. I just got a lot of lasers shot at my eye yesterday at the doctor's office. So, I can't really tell that Sari is not there. 😆

[@cogmonocle2140]

as soon as hank mentioned lasers being used to make things that seem impossible, my first thought was "time crystals?"

[@Dee-jp7ek]

Ah yes the taste of Laser. These are the kinds of people who swear something tastes different when the packaging appearance changes.

[@trelligan42]

Graser is the accepted term for Gamma-Ray Laser. Not to be confused with Gravity Laser. Both are hypothetical, the only use for grasers is currently warfare-In Space!!!

[@dianewallace6064]

I have aquamation (water cremation) in my Will that way my last act won't be putting CO2 in the atmosphere. Water Cremation with a weak acid will allow me to be drained into the water treatment system and my crushed bones can be given to my family and they can spread them in your yard.

[@terranovarubacha5473]

Where does the CO2 end up in this scenario?

[@ponyote]

This is Rare Earth and you are a rare human. Thank you, so much.

[@null.psyche]

Re: 3D printed food, 2067 P4A perk, the file for printing Pizza John shaped pepperonis

[@katebackman7815]

Hanks guffaw closing out the episode made me smile hard 🥰🥳

[@therealkamp]

I don't know why my inquisitive mind brought me to this whole overall channel, But I'm Not Mad That I am here. Thank you Guys 😊

[@duhhuhduh]

This is my first time watching long time listener. You look so much different than I imagined you.

[@rxbudian]

Hey, Is there a way for us to get the laser show Sari video? It would look awesome for a desktop background or a screen saver

[@SciShowTangents]

Hmm I'll see if I can figure something out!

[@designate_om]

Having been deeply into No Such Thing as a Fish for a while now, I'm very glad I stumbled into this corner of youtube

[@jn651]

Can't wait for my Kenmore-Livermore Microwaser

[@dstinnettmusic]

Glad we don’t have to wait for a dimensional rift that make the date Feb 29th 2023 to see this episode

[@Mithrandir39]

Question.... If dinosuars evolved into birds, Does a T-rex taste like chicken?

[@leelarson1952]

Yes, but they are extremely tricky to pluck.

[@Mithrandir39]

@@leelarson1952 Hahahaha

[@unicornep1818]

Never mind Ceri, I bet the cat was just to beautiful to record.

[@shadebug]

Bentham’s heeeeeeeeeead

[@El-Burro-Grande]

How about a satellite-based laser platform that creates a path to a target and then lets lightning follow that path to glass the target. That might work.

[@takumi2023]

don't forget light bends under the influence of gravity. as well as other light source can disperse the laser over time. so theoretically there is a limit when the last photon is scattered it's not a laser anymore.

[@cansley1]

I personally think sam is adorable

[@shlomster6256]

Flasers (food lasers?)

[@MissMarilynDarling]

You guys have to do something about the sound before the fact off its like gone all wonkey or something its creepin me out man !!

[@CatBarefield]

That’s is not what i picture if i hear “laser chicken”

[@theunknownunknowns5168]

Why chicken Hank meat? We can biopsy Hank and grow real Hank meat from that. Then 3D print a Hank meat for the BBQ lazer with extra char grill lines. Hmmm, somebody start giving Hank extra oats and potatoes.

[@SciShowTangents]

mmmmmm...... bbq hank.......

[@frogz]

it's 2 am... this is at the top of my feed, is it going to effect how i sleep? probably you guys could have released it last night but nooooooooooooo now i'll never learn about food replicators!

[@frogz]

yay i was able to watch this hey hank, i have a scar in the shape of the letter F on my arm.....ask me how.... i guess even turning down the power level to 10% 3 watts still cuts through flesh like butter...

[@mossydog2385]

If anybody's body gets sent to the moon, they need to be holding a big sign thst says somethi like "Saturn, can help out with fuel"....

[@clintonreddekop9229]

Electromagnetic Radiation Amplification by Stimulated Emission of Radiation

[@RAWRLOVEism]

The joke about eight hours of y'all sleeping wouldn't actually be cutting edge. Andy Warhol did that decades ago.

[@chrissik3102]

Mega maser 👍🏻👍🏻👍🏻👍🏻

[@MissMarilynDarling]

we could just call it the Hankinator

[@nottsork]

a billon light year laser would take one billion years , times two to detect the spot on a distant planet and then the light to get back to us , however you would have to account for stellar drift and shoot it at where the planet is supposed to be by the time the light reached the destination , for us to see it travel back to us so even if we shot it at a confirmed object in the Promina centauri system , it would take 4 years to get there and another 4 years for us to see if we hit the object correctly

[@ponyote]

Sorry, Hank. Any countable number is not equivalent to infinity, even a countable infinity.

[@JimSky]

Not sure why the butt fact at the end was met with so much skepticism. Have you guys not witnessed fart lighting in college.?

[@ponyote]

Does the blue-green frequency of laser light actually work better underwater?

[@joshjonas1868]

so could you use a laser to steer artificial lightning from sort of tesla cannon?

[@MECKENICALROBOT]

I want to get rich enough… to afford to build a rocket with enough capabilities to take dead body to be incinerated by the sun.

[@tao5231]

❤️ 💙 💜 💖 💗 💘

[@djschultz1970]

what about a Hank stimulated emission of radiation. a HASER? Or an Amaser?

[@elisa.llew-send]

DFTBAser?

[@WhiteSpatula]

Hank, boy, you talk fast! I’ll bet you can pull off a true American rolled D in this here tongue twister: What d’ya bet Eddie said Betty edited it already? And here’s one more: (Nevermind woodchucking woodchucks) How many nunchucks would nine Czech nuns chuck if all nine knew Chuck Norris? (Trick question. The answer is none, of course. They’re all non-violent and therefore knowledgeable yet non-nunchuck-chucking nuns.)

[@terranovarubacha5473]

Chucking nunchucks is not inherently violent

[@MrUtak]

I was hoping for a light-show AI generated Riley's face. I was disappointed.

[@cullyomeara6918]

How does a laser or MegaMaser travel a distance of 50 BILLION LIGHT...YEARS - an increment of distance literally defined IN the name as the distance light travels IN A YEAR - originating from Earth...in less than, say...50 BILLION years??? I'd like to see this laser, for it has faster than light...light. Would it not? Lol

[@jonathanpicket124]

Am I the only one who cringes when people say, "I've been *insert name*" at the end of something, rather than just saying, "I'm *insert name*"?

[@ditzfough]

Doesnt bother me.

[@leelarson1952]

"I've been *insert name*" is not inaccurate, particularly when used during the recording of media.

[@jonathanpicket124]

@@leelarson1952 I understand that it isn't inaccurate. It just sounds weird lol