We Built A Laser Out Of Tin Foil And Highlighters

Dye lasers are amazing because they are a high power source of laser light in essentially any color. And best of all you can switch colors in as long as it takes to change the liquid. Today we explore how they're made, how they work, and how a laser made of garbage could be the secret to making a meat laser.
Get your tickets for opensauce now! opensauce.live/
3d files: github.com/thethoughtemporium...
Previous videos:
Meatcubator • This Machine Grows Liv...
Genetically modifying Bacteria • Simple Bacteria Geneti...
Designing DNA • [LIVE] Learn Genetic E...
Magnetron • Coat ANYTHING in METAL...
Videos from other channels:
@styropyro • DIY Laser Made from Th...
@LesLaboratory • DIY Home made High Per...
@PlasmaChannel • Building A Simple High...
0:00 Introduction
4:09 TEA lasers
6:42 Building the Laser
9:38 Dye lasers
13:15 Changing colors
14:54 Wrap up
16:00 Opensauce
____________________________________________________________________
Support the show and future projects:
Patreon: / thethoughtemporium
Nebula: go.nebula.tv/thethoughtemporium
Ko-Fi: ko-fi.com/thoughtemporium
Become a member: / @thethoughtemporium
Store: thethoughtemporium.ca/
______________________________________________________
Our Social Media Pages:
Tiktok: / thethoughtemporium
Instagram: / thethoughtemporium
Facebook: / thethoughtemporium
Twitter: / emporiumthought
Website: thethoughtemporium.com/
_____________________________________________________

[@tkaczgames564]

Stuff like this is what motivates people to become biotechnologists. Making whatever you want, playing with organisms and modern technology creating something that sounds like magic

[@grins9882]

True, this channel is the main reason I'm pursuing genetics rn

[@UNVIRUSLETALE]

Absolutely, I chose to do my biotech bachelor's because I wanted to know how fluorescent cats worked and I'm now halfway through my masters

[@maxluthor6800]

yup same here

[@justsomeguy5628]

And the amazing thing is that all of this can actually be what your job is like, depending on the specifics. For example, a bio laser could be used in experimental cancer treatment, advanced brain scanning technology, indicators that literally point to the location, and more.

[@monad_tcp]

Im a computing scientist and I'm disappointed we don't use more lasers. Where are my optoelectronics ? I mean, I know about photolithography which is basically how every chip is made ever. Still , want to play with lasers .

[@quillclock]

the fact your laser made of "trash" worked better means the fates have decided you are a garbage bender now. you made too many amazing things from scrap that it's your medium now. o7 keep up the amazing work

[@DoubsGaming]

Welp if it means reduce, reuse, recycle then it's probably for the best right?

[@partciudgam8478]

Gomi no Sensei!

[@ViniSocramSaint]

I cracked! It shouldn't be that funny "water, earth, fire, air,... garbage!"

[@johnmarkgatti3324]

i had a mental flash of doc from back to the future digging through the garbage for fuel too !!.

[@bup3483]

​@@johnmarkgatti3324 Ja, Ulkig. Gut das wir wissen, das er gerne Läserstralen positiv einsetzten möchte, um Vitamine, Spurenelemente und ähnliches zu suchen.

[@airborne0x0]

Thanks for this. Almost 40 years ago in 8th grade I had the assignment to 'design' a biological creature. I had been obsessed with dye lasers from a library book on how to make your own (I later dug into research and Amateur Scientist articles), and imagined a creature with a biolaser built in, with a flash lamp pumped with the biology of an electric eel, with fluorescent liquid similar to a jellyfish, biolenses of a squid's eye, and partially reflective material similar to a cat's iris or the skin of some fish. The teacher was very critical and said it was so improbable. But that wasn't the assignment, and I remained convinced all this time that all the components were possible, with occasional flashes of vindication coming out, including this one. I still have the desire to build a dye laser so I will have to pop it a little higher in my project list.

[@andrewferguson6901]

Bro. You're on another level

[@freelancer917]

Finally. Sharks with lasers.

[@drewlop]

Well boo to that teacher! Sounds like you thought it through very well

[@janthran]

@@freelancer917 bad idea! the only reasons sharks haven't taken over the world yet is cuz they haven't got good enough guns yet!

[@airborne0x0]

Things will get interesting once we get to the stage where we can do fully simulated generative DNA design and program in biological components as needed. I think we have the tools to start working on this now.

[@Nighthawkinlight]

Neat stuff! The rail laser is crazy, never seen anything like it.

[@Dinnye01]

It is almost surprising to me that you have not yet touched on lasers yet. Then again, that might be a job for Tech Ingredients. Nice to see you here!

[@STONEDay]

Last thing you'll ever see.

[@janthran]

seeing something that generates that much power with essentially no insulation is pretty terrifying lol

[@Psykoses]

Styropyro and The Plasma Channel also made their own versions of that laser. Both just as terrifying. Styro watch?v=1psxE4NlECQ PC watch?v=YFkUOPl0tUw

[@p8p877]

Styropyro made it a while ago

[@anonimowyburek7207]

i absolutely love how you discurage from building the laser but still provide all the details "just in case"

[@threeMetreJim]

The 'technicalities' of the desire to transfer knowledge, while at the same time avoiding a channel/video takedown because of 'Karens' (or atmospherically geometrically frozen water).

[@yandere8888]

@@threeMetreJim ah yes hes saying to not build the lethal insta kill/blind machine cuz hes afraid of yt taking him down

[@johnmarkgatti3324]

plus his mum said ,' don't do that ' many times ,so he is naturally programmed to have to try it , knows we are too ,human nature ..ever since Eve actually ,When the Big Boss ,said don't eat that trees fruit it will kill you , what did she jolly well go and do !!??.

[@charlesnathansmith]

You can't stop people from doing dangerous things. You can show them how to minimize the risks

[@matheusviana8056]

"Don't actually try this. Here's the circuit diagram of the laser..." - The Thought Emporium

[@finnimus2547]

this brings a whole new meaning to flesh light

[@mikeoxmall69420]

Bro made a Scorn gun💀

[@bup3483]

Nicht witzig, solch Laser sollen keine Proteine usw. zerstören.

[@darrylkinslow5613]

No, I don't think it does. How do you figure "laser" and "sex toy" are close enough to associate the name of a sex toy with a laser?

[@wea69420]

​@@darrylkinslow5613a meat laser. a flesh light.

[@kadrix732]

@@darrylkinslow5613You... Really aren't very smart, are you?

[@mikajacobsen860]

I have worked with dye lasers and want to share some insights: - You do not need UV light to pump Rhodamine 6G. The frequency-doubled output of a Nd:YAG laser (532 nm) is typically used and is much more efficient since the quantum defect to the emission wavelengths is small. - A pumped stagnant dye solution will quickly get trapped in states that are unresponsive to pump light. The dye solution is therefore typically circulated so that the dye molecules have time to return to the ground state before being pumped again. - The optimal dye concentration depends on the length of the cuvette with longer cuvettes needing less concentration. The concentration also shifts the tuning range of the dye with higher concentrations shifting to higher wavelengths. - The surfaces of the cuvette can themselves act like a laser resonator, resulting in an unwanted beam. The cuvette is typically vertically tilted to steer that beam away from the intentional one. - The positioning of the cylindrical focal lens is quite important as you have correctly identified. However, tilting the lens like that results in aberrations that lead to uneven illumination. A better solution would be to move the whole lens closer or farther away from the cuvette. Where the lens needs to be rotated is around the axis set by the pump beam. This tilt angles the focal line. You can either align the focal line with the laser resonator for maximum conversion efficiency or tilt it slightly away from it to limit the amount of amplified spontaneous emission that travels along with the dye laser beam. - Rhodamine 6G is indeed a nice dye.

[@BackYardScience2000]

Dude, if I had known that you needed dyes I would have sent you some of every kind that I have on hand for free. I really need to get up with you on donating some stuff one day. As a chemical distributor, I have tons of dyes, just like these, that you could just have. Take fluorescein for example, I have pounds upon pounds of the pure powder, plus tons of others. If you ever need anything like that, just let me know and I'll gladly send you a ton of each absolutely free. 😃

[@Shrek_Has_Covid19]

can you help me make methamphetamine

[@BackYardScience2000]

Thank you all for the encouraging remarks! I will reach out when I find the time to do so and I will try to donate some chemicals and elements to his channel/business to help save him some money and to just help out. Ignore the guy wanting to make drugs. I get comments like this occasionally due to some of the things that I sell and I do not appreciate those types of comments and I report any suspicious people to the feds because I am required to do so by law in order to be able to keep selling such things. Don't want to get a visit? Don't ask me to help you make drugs. Simple.

[@Shrek_Has_Covid19]

☹️

[@handlesarefeckinstupid]

​@@Shrek_Has_Covid19not gonna lie, that made me snort.

[@yosemitesam9576]

@@Shrek_Has_Covid19Did you actually think doing that was worth it lol

[@dontworry4945]

Literally synthesized molecules in an abandoned farm house for 2 years trying to make one of these dye lasers. And the meat laser? Way farther than i ever could achieve. I made 3 dyes but i could never get them into lasers. I didnt have ambition, or 3d printing but man. This was literally my dream as a 17 year old. Thank you for reminding me of the days of gold when chemistry channels like nurdrage and chemplayer and masterminds like styro the like Began to inspire me. You really rock, bro.

[@Slop_Dogg]

Yep, this guy is seriously skilled. I was blown away

[@commentfailedtopost]

You created life?

[@dontworry4945]

@@commentfailedtopost truthfully that not a impressive accomplishment. but I think you misread my comment if that's what you absorbed from it.

[@commentfailedtopost]

@@dontworry4945 So, a whole celebrated book is devoted to the concept of creating life, in which case a monstrosity is born, but when we do it today and answer a thousands-year old question of where do we come from, we're just, like, "meh"?

[@spvillano]

@@commentfailedtopost granted, I curse in 6 languages fluently and was raised speaking both UK and US English, somehow I didn't get creating life out of synthesizing molecules. For fuck's sake, burning hydrogen synthesizes water molecules! That sure as shit isn't life, but absolutely necessary to maintain it. Of course, synthesizing organic chemicals properly, that's a wee bit more complicated.

[@agentklaas]

As one of my optics profs once said: almost everything will lase if you pump it hard enough. Also, and without getting into the intricacies of building a high end laser, a simple trick to make the laser cavity more stable (which should make it easier to align) is to replace one of the end mirrors with a slightly convex mirror (i.e. with focal length larger than your cavity length).

[@reinei1]

Yeah, creating a more stable (as in stability polynomial, not necessarily acoustically) cavity is to provide at least *some* form of focusing. Also for anyone else interested in doing this themselves: Just because the commercial UV laser was *safer* (electrically) to operate it's STILL A UV LASER which means it basically automatically is a class 3 or higher laser and also carries a higher risk of cancer (I am not entirely sure if this is wavelength dependent, but in all laser safety briefings and classes our magical wavelength is 400nm and everything below that requires *very* hard to get safety gloves and thorough documentation for something like 40 years due to the potential increase in cancer risk if exposed to the beam)

[@jamesbachman4249]

@@reinei1 you're right it's wavelength dependent. UV light is just the right energy level to cause particular mutations in our DNA (two bases covalently bond together), whereas visible light is too long wavelength. I'm guessing high power visible light would just burn a hole in your skin before causing cancer

[@sciencegeek499]

@@reinei1 and blindness,, gotta make sure those goggles are validated correctly

[@Mister_Brown]

@@sciencegeek499 which is even more important with dye lasers since you can produce colors that no goggles exist for

[@ericlotze7724]

@@reinei1 Electrical Interlocking and MAJOR Safety Precautions are for nerds though… ( /j , the people behind this channel are probably doing all that / fine, but yeah especially the diode lasers selling these days really pretend laser safety doesn’t exist)

[@Mwwwwwwwwe]

"Then I just download the genetic sequence from 'thingiverse' and quickly insert it into e-coli"😂😂😂😂

[@storbytronics]

I built one of these when I was 13 not realizing how dangerous they were, I am still surprised and thankful I did not get electrocuted or blinded doing it!

[@uncommonsensor]

How neat that you went over the build process in such detail

[@Jackson_Zheng]

But remember - don't try this at home

[@durpeey1400]

@@Jackson_Zheng 1984

[@notapplicable7292]

It really feels like stuff is ramping up this year! Looks like the infrastructure work over the last few years is really paying off.

[@Lizlodude]

"I maintain a huge collection of genetically engineered E Coli" belongs in an xkcd somewhere Thanks to StyroPyro I immediately recognized the TEA laser and am immediately scared. Also that feeling of building it all proper like and it works worse than the prototype is so much feels.

[@stevepreskitt283]

This video really takes me back about 35 years, when a friend and I puttered around with both N2 lasers and fluorescent dyes in our off time. Something that's not mentioned but should be kept in mind - Rhodamine 6G will stain *everything* you get it on, so aprons or other cover should also be worn in addition to PPE for the risks that will affect your health and not just your clothes.

[@grinreaperoftrolls7528]

You single-handedly convinced me to switch from physics to biology back in 2021. Mad science is awesome!

[@shipwreck9146]

I graduated in physics, but I have a general understanding of most fields of science (nerd with adhd)... Anyway, genetic stuff is literally magic to me. I'm still not 100% convinced that bio engineers aren't just wizards.

[@Nah_I_Would_Plummet]

biology is amazing but not enough for me to ever switch from physics lol

[@SenpaiSkyy]

Oh sweet 3D files for a dye laser. I have Been looking for this. Thank you!

[@kenb4849]

I can only imagine what your ultimate goal could be with all of this, I suspect that a lot of this stuff has already been played with in the big labs, but the fact that you are doing it here, just proves that ingenuity and the masses can prevail. Best to you, Ken.

[@Wyi-the-rogue]

Laser eyes

[@PossiblyABird]

Modern science truly is amazing, can't wait for the meat laser.

[@TheWretchedOwl]

“And I’m the only bio-engineer on KZbin crazy enough to try. That, in a nutshell, is why I subscribed in the first place 😅

[@LeoDaLionEdits]

"I wouldn't recommend you building this, but here is exactly how to build it" 😂

[@DAVOinIN]

I'm a laser physicist by trade and this is a fantastic video. Most of it is familiar, but i'm very impressed by how well you synthesize all these different topics and condense them without necessarily reducing them to an inaccurate form. Specifically, the topic of grating based mode-matching is awesome and a bit of a pain to explain well, but you managed to do it in less than 30s! One critique is that the TEA doesnt work via stimulated emission, but rather ASE (amplified spontaneous emission). This also means that although it is fairly temporally coherent, it isn't perfectly so which is why it only runs on a pulsed source.

[@timng9104]

great to see ur lab growing well! sputtering, meatcubator, lasing set-ups, so cool!

[@psiga]

Downright kaleidoscopic rush of a video, and all of it was actual genuine examples of what amazing, beguiling thing you're working on! _No wonder_ I'm subscribed to you guys.

[@kennethhicks2113]

"I've done so much with so little for so long I can now do anything with nothing" I saw/read this many decades ago and thought I'd share in case you haven't read/heard. Very appropriate for you imo. Something I tell my kids and others, "There is nothing hard, just things you haven't learned yet" Enjoyed very much, be safe and hf learning.

[@emyshini]

Loved this video. I once made a TEA laser in highschool for my science fair project. Used a neon sign transformer, some aluminum foil, painter's plastic, plexiglass, and aluminum rods to essentially make it. I wish I had access to information like this back in the day. Not that I'd know how to make these laser proteins but it would have made for a fun discussion along with how the UV laser worked and what it could be used for.

[@xiaoranli8036]

This is a crazy project. But your work is so amazing and inspiring. Good job bro!

[@quillclock]

MEAT LASER!!! ok we are getting into supervillain territory. . . and i am 100% here for it

[@matthewphillips9083]

This gives me the same vibes as writing my engineering honours project, you've clearly done tonnes of amazing work and have absolutely no time to show us the immense amount of work you had to do to get to where you are. Very interesting and exciting video, loved it!!

[@iwanttwoscoops]

i like that you used this one paragraph compliment to… brag about yourself. like your first sentence added exactly nada to the comment, and makes you look socially iffy

[@matthewphillips9083]

@@iwanttwoscoops appreciate your feedback, champ!

[@iwanttwoscoops]

@@matthewphillips9083 gotchu dad

[@movax20h]

I discovered Les's Lab few days ago, and what he does is very impressive, but also shows how some of these things are not as complex as they might initially look. I knew of your channel for years, but this is a great showcase of lasers. The dye lasers are cool. It is also mind blowing that anybody can just engineer DNA of a bacteria with just few clicks in a browser. Wow.

[@-feonix48-47]

This is making me think about that silver nanoprism video from applied science a while back, and that’s one I’ve gone back to quite a few times. Great video, love this stuff as always

[@zenmark42]

your mad scientist projects have gotten so ambitious. this is some wild stuff man, can't wait to see how you make it work.

[@MD-pg1fh]

Thinking quickly, Dave crafted a laser out of cells, a dye, and a laser!

[@marcusramberg5340]

Bro I didn’t even know you could do almost any of what you talked about, that’s super cool, like ordering custom dna things that grow with your desired codes or whatever you called it, wild man, keep it up

[@t0nI0]

WHAAAT? Dude, love the synergy between disciplines and perceived simplicity you show here. That's beautiful science, I love it. Thank you.

[@crackedemerald4930]

It's weird seeing a video on such a sketchy laser machine and not be reminded how it'll delete my retina if i even think about looking at the the spot on the wall

[@randomname4726]

"Wow! This thing is so sketchy that...... etc etc"

[@SenpaiSkyy]

Oh sweet a new laser video. I missed the TEA laser video you made and hid.

[@thethoughtemporium]

It wasn't very good so I wanted to redo it. This is the result. And now I have the tools to follow up and succeed on the quantum entangled particles I mentioned in that video. So really I took down 1 bad video, to replace it with with 2 good ones.

[@SenpaiSkyy]

@@thethoughtemporium I can't wait for the next video. Thank you for the update!

[@barryyoung6159]

This is absolutely awesome, thanks so much for sharing your work !

[@oxoniumgirl]

Thank you so much for posting the dye concentrations in sensible units! I'm making a rhodamine b dye laser with a SHG-YAG and the main unknown I've had trouble nailing down was how much dye to use.

[@aetius31]

Impressive work! But don't forget to protect your skin from UV, good sunscreen is a good option if you dont want cover yourself up all the time

[@PlasmaChannel]

Your nitrogen laser is a beautiful build! Far superior to mine I must say. Great video!

[@thethoughtemporium]

Thanks man! Your video was really great too!

[@JamesBrown-oe7zd]

@@thethoughtemporium Please do some experiments with a Kozyrev Mirror. I would really like to know the truth in what you experience. Apparently according to the team who work with it and others it seems to really concentrate time and the experience is horrifying to some.

[@YuriChan-428]

8:34 Just look at that coronal discharge! Going from the sharp corners as they should! Beautiful!

[@freehat2722]

I've been waiting many years for more work to be done on bio lasers. Thank you sir.

[@joundii3100]

"We really don't recommend you try to build one, seriously it's super dangerous and could easily kill you in an instant. So anyway, here's exactly how you could build one."

[@DoubsGaming]

Something I don't see anywhere which should be shouted from the rooftops. WHERE EYE PROTECTION WITH LASERS. Not sure if this is the type that needs it if it's a special case, but better not lose an eye.

[@reinei1]

It's a UV pulsed laser, it most definitely needs eye protection (and possibly hand protection as well, but I don't work with UV lasers because the required safety precautions are insanely difficult/costly to fulfill here)

[@shortcut1331]

As always super interesting content :D Thanks for sharing! :)

[@zubrkabbi]

We missed your videos and mad scientist inspiration!

[@gavinyarwood4752]

For the love of god please please no one ever break this man's heart. If he turned evil we are doomed!

[@netherstarbuild]

nice!

[@iPsychlops]

I am from Northern California, but this is the year that I am out of the state for my pre-doctoral internship… I am so sad that I’m going to miss seeing all of you when you would all be so close to my home. I hope you do this again!

[@valiantstallion]

My lord this is an incredibly well crafted KZbin video.

[@DirtySpoonz]

just brilliant, mad science and brilliant information delivery thanks ! keep making videos :)

[@carpemkarzi]

Not what I was expecting to think about today but here it is and it’s fantastic

[@edwardvarby4363]

Back in the 90s, a guy who worked at an air force base,gave me a laser that he found in storage. some guy had made it in the 70s or 80s in his spare time from a magazine article, but one of my favorite movies was My Science Project. So I had a very high opinion of it. In this video,I recognize a lot of the parts. Mine has an watched board for the base, & plans are ancient photocopies.

[@berylcnc]

You guys have the secret sauce for massive technology advances - cross pollination of these vastly different disciplines. Massive love from Beryl CNC!

[@benoit-pierredemaine3824]

8:33 love the micro blue antennas out of the corners when it's not arcing

[@connorcahill8688]

So happy to see a fellow mad scientist on their way to making the potentially possible, possible. I haven’t taken any steps yet but I hope to in the next couple years

[@npiper]

Quick reminder that 20-ish years ago nearly everyone had a 20,000 volt flyback transformer just a few feet away from them protected from touch by just a few millimeters of plastic. I am of course talking about CRT televisions and in case you are wondering YES people did die poking around in them with screwdrivers.

[@vezenik6059]

Wow, this is good. I have never thought living cells could be used for stimulated emission! Now I have gotta build my own!

[@avi5134]

The amount of information we get here for free boggles my mind every time.... Can't wait to see what's coming up next in the future.

[@ExpatZ266]

So cool! I did similar a few decades back but I made my pump with plexiglass and pumped it down with a fridge pump, soooo loud and yeah, I did burn my eyes a little being in the room without full circumference sheilding on the glasses. Lesson kids: ALWAYS wear eye protection that coverover your eyes all the way around to the skin when playing with lasers. What you can't see WILL blind you if you are careless. Loved the vid, subscribed.

[@draggonhedd]

I used to work in laser manufacturing and i sure do love ThorLabs. They are so fun for an industrial supply company.

[@Nobody5555-]

love your content hope to see more soon

[@firstmkb]

I came to a dead stop at “huge collection of genetically engineered E. coli.” To a guy with thousands of books, parts for obsolete computer architectures, and a ton of other random stuff “too good to throw away,” that seems weird. Yet you did something with it. I’m envious.

[@BenFortner]

No period on the T.E.A acronym graphic. This isn't critical feedback, just a very relatable moment. Addicted to your channel now. Thank you!

[@whendricso]

"Meat Laser" might be the coolest/weirdest idea I've seen on KZbin. And there is a lot of cool and weird stuff on KZbin.

[@AIUserInterface]

Wow! Thank you so much for the information. I am now a subscriber and look forward to personally going far down the laser world rabbit hole. Again, thank you so much... GL

[@benjaminbirdsey6874]

This is interesting. I worked with a 1-watt CW laser that used Rhodamine 6G. My first thought about using a more complex molecule is that more of the light will be trapped in states that are not optically connected to the ground state. A solution to this for dye lasers is to circulate the dye at a fast rate to keep the dye exposed to the pumping laser "fresh."

[@billykidman2091]

Better watch out, Styropyro might come looking for you with the laser bazooka

[@user-yr7xi1om3h]

I spoke to the scientist that created Glo- fish and ive been wanting to learn more about different proteins from jellyfish and other specimens. I never considered they could be made into a laser 😂. Love this channel already.

[@adolfomotanavarro6553]

For the first 3+ minutes all I've been wondering about how uv tends to kill cells, good thing he did take that into consideration for the video explanation

[@SadeN_0]

I can't begin to imagine how many watchlists you're on, but I appreciate the work

[@johnclavis]

Lasers of diverse colors is beautiful and exciting

[@user-lu1pn6to9e]

I believe this man's work will bring forth some good discoveries one day

[@layheeee3782]

I wish styropyro helped you out with this, would have been the colab of the century

[@tanchienhao]

Am very pleasantly surprised you made a video on rhodamine 6G as I’ve been looking at it for a while now

[@nehemiah1441]

keep building from scratch I love learning form scratch. Amazing stuff!

[@tisAndyyy]

Brilliant video. Absolutely buzzing I found your channel. It’s exactly the type of content I like to see. Keep up the great work!

[@ricardasist]

Bro, this was cool as heck. Keep it up, you inspired me to look for a hackerspace in my own town for a radiotelescope project, or making some graphene or making genetically modified bacteria (have no friends to do them with so i am waiting for the day i finally decide to try something)

[@ctcheath7238]

I would really love to see all those mad scientist creators collaborate on one project just to see what did they create

[@Financeification]

Man, I love this guy's videos. I wish I grew up nextdoor.

[@colosine]

You know you're working with power when the device messes with the cameras ability to record

[@christopherjones7191]

A term that might be useful for adjustment is a micrometer screw, thimble or similar. A very smooth, precise piece of machenery for relatively cheap.

[@larrysal8866]

He has (finally) gone completely insane. Good

[@KalijahAnderson]

First video I've seen from you. Fascinating stuff. Subbed.

[@garethsmith7628]

Interesting point you almost make - an arc in air has a negative resistance, that is why there were early transmitters based on spark gaps as this negative resistance overcame the losses in the LC resonator circuit, thus creating a waveform at a frequency. Plenty references on the web if you look. Modern day examples of similar are tunnel didodes that have a V/I curve that has both positive and negative sloped parts of the curve, depending on bias voltage.

[@serta5727]

Even thinking about this stuff is out of this world ^^

[@Midnightmicroscope]

I was so excited to see this video! as someone who is a big fan of you and Les’ lab and as someone who happens to have a few vials of purified GFP laying around, I have wondered about this exact idea. I am so excited by the idea of you trying it for real! I hope to see you at OpenSauce.

[@PilotPlater]

I’m definitely not going to do this, but if I wanted to this video would be a godsend. Well done

[@Firesgone]

Something I am slowly becoming obsessed with is a true blue feathered chicken. I think I have found the right person. I will probably send you an email about this project for advice in the next year when I get more set up for this experiment!

[@ericlotze7724]

It will probably be covered in that next video, but I’m intrigued by the Dye from E. Coli at that Makerspace scale. Dye lasers are cool and all, but applying that to other uses of florescent dye (Microscopy Stains, Art, Non-Destructive Testing, etc) would be neat, especially with like how you said it being cheap.

[@ericlotze7724]

I’m intrigued as to your methodology. I’m guessing column chromotography? If I remember correctly that is what the company Gabriel Lienca mentioned that makes blue dye from algae uses. Although if you can extract it with something less intense that is always a food thing. (Although i would love to have you design an Open Source Continuous HPLC System…)

[@dingus153]

First a meat berry now a meat laser? You absolute mad man, I love it

[@tulsatrash]

What a refreshing beacon of hope, rigor, and whimsy.

[@oscargr_]

You mean "bacon" of hope, I think.😅

[@chefscorner7063]

The 2 funniest moments in this video for me was at around 4 minutes in the narrator was using what are now common terms (Genetic manipulation, building them by design, etc) that were all but science fiction until my 30s!!! And "This is for Educational purposes only" line and then shows exactly how to build everything!!!

[@Mr_Giraffe]

The only complaint I have with this channel, is the upload frequency. These videos are so interesting.

[@alwayshere6956]

It makes me so happy to hear you shout-out styropyro. Hope you can do a Collab again!

[@serloinz]

watching stuff like this makes me realize how much of my life i have let go by without having my childhood want to build things and experiment ..life isn't over tho.. inspiring :)

[@thomasrogers8239]

OMG! This is the thing! I suggested this back when the pandemic started!

[@johnbillings5260]

Man I wish I knew enough about EE to do that. I have a pretty healthy respect for high voltage, current (especially AC) after a close call a few years ago while replacing a heating element that I had tested and believed was isolated. I saw cool lightning burn in for a couple of days. 😅