How to (Almost) Make a Telescope from Scratch

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After making Eyeglasses and a Microscope from scratch, next I set my eyes to the skies and want to attempt a telescope from scratch!
Thank you to Lewis Dartnell again for his help, his book has helped inspired most of the optics series. Check it out here: goo.gl/jlN4aX
Special thanks to the guys at American Workshop for their help making the telescope body! americanworkshop.com/
The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US market. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally.
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|| ABOUT ||
Today, getting what you need is as easy as a trip to the store. From food to clothing, energy, medicine, and so much more, Andy George will discover what it takes to make everything from scratch. His mission is to understand the complex processes of manufacturing that is often taken for granted and do it all himself. Each week he’s traveling the world to bypass the modern supply chain in order to harvest raw materials straight from the source. Along the way, he’s answering the questions you never thought to ask.
Music by the talented Taylor Lewin
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Пікірлер: 917

  • @Navimumbhai
    @Navimumbhai7 жыл бұрын

    Safety was not number one priority in this video

  • @jort6476

    @jort6476

    7 жыл бұрын

    Boom look at that

  • @konchatzi

    @konchatzi

    7 жыл бұрын

    bhai rankar look at dat

  • @Navimumbhai

    @Navimumbhai

    7 жыл бұрын

    Boom!

  • @shaskizzle

    @shaskizzle

    7 жыл бұрын

    When he cut his finger: Uhouh!

  • @juliuscarlnavales8432

    @juliuscarlnavales8432

    7 жыл бұрын

    bhai rankar you forgot da "the"

  • @bagunzi
    @bagunzi7 жыл бұрын

    man, why the HELL did anyone tell you that is a BAD IDEA to DRILL GLASS with diamond BLADES with your bare hands? When I saw the first second of this drilling I knew its going to end bad.

  • @KonservenFurz

    @KonservenFurz

    7 жыл бұрын

    Hey man, it's a Minnesota thing. We know it's dangerous but we still do it because we don't feel like finding our gloves. Source: My dad almost cut off his thumb (again) with a table saw a few days ago

  • @simaod17

    @simaod17

    7 жыл бұрын

    bagunzi could have been so much worse too

  • @mktulpa

    @mktulpa

    7 жыл бұрын

    OSHA needs to start auditing people like this in their homes

  • @Mystiverv

    @Mystiverv

    7 жыл бұрын

    Same dude

  • @Sharpless2

    @Sharpless2

    6 жыл бұрын

    mr Overcarefull was found. Mission Successfully completed

  • @smith2354
    @smith23547 жыл бұрын

    glass manufacturing = the bane of How To Make Everything

  • @MrAstrojensen

    @MrAstrojensen

    7 жыл бұрын

    Wrong. Just ask the right people to help you, namely amateur telescope makers.

  • @MrDRSMAX

    @MrDRSMAX

    7 жыл бұрын

    amateur telescope makers don't typically make their own glass. They'll either start with a premade lens, or with a glass blank.

  • @kenroleinvald3630

    @kenroleinvald3630

    7 жыл бұрын

    glass blowing

  • @MrAstrojensen

    @MrAstrojensen

    7 жыл бұрын

    True, but I know some of them on CloudyNights have made their own glass, just for the heck of it.

  • @eggperson5410

    @eggperson5410

    6 жыл бұрын

    But it’s So Damn Pretty

  • @Exayevie
    @Exayevie7 жыл бұрын

    Andy: Unfortunately, I still haven't quite figured out level 1. What should I do? Louis: Definitely move on to level 170.

  • @hornetIIkite3

    @hornetIIkite3

    5 жыл бұрын

    Sometimes you have to run before you can walk. Or drill before learning how to operate a drill safely

  • @bearcatben4762

    @bearcatben4762

    4 жыл бұрын

    He figured it out now

  • @TheOfficialCzex
    @TheOfficialCzex7 жыл бұрын

    I'm glad you got a sponsor! More money for you = more content from you!

  • @alexchulzhanov

    @alexchulzhanov

    7 жыл бұрын

    Holy crap it's been a long ass time since I've seen you.

  • @TheOfficialCzex

    @TheOfficialCzex

    7 жыл бұрын

    byalexandr I spend most of my time on the PCPartPicker forums, now.

  • @alexchulzhanov

    @alexchulzhanov

    7 жыл бұрын

    TheJTguy Years ago from the LinusTechTips forums.

  • @TheOfficialCzex

    @TheOfficialCzex

    7 жыл бұрын

    byalexandr Indeed. Great to see you again.

  • @nataliaturczynska1386

    @nataliaturczynska1386

    7 жыл бұрын

    TheOfficialCzex Albania

  • @Dracheneks
    @Dracheneks6 жыл бұрын

    Please, do how to make leather gloves. These would help lots, not only for us, but you too.

  • @cleverusername9369

    @cleverusername9369

    3 жыл бұрын

    He'd have to raise a cow for that

  • @JoshuaFCB

    @JoshuaFCB

    3 жыл бұрын

    Dan Witzke or buy premade leather

  • @georgeb.wolffsohn30

    @georgeb.wolffsohn30

    3 жыл бұрын

    Catch a deer. Skin it. Tan the hide. THEN make the gloves.

  • @ismailcho76

    @ismailcho76

    3 жыл бұрын

    @@cleverusername9369 😂🤣

  • @ronievonvarona7269
    @ronievonvarona72697 жыл бұрын

    Drill with a diamond-tipped drill bit, use your bare hands to touch the glass it is cutting.. what could possibly go wrong? :)) I was actually expecting you to get hurt when I saw it, and it happened. be careful

  • @gulle8536

    @gulle8536

    7 жыл бұрын

    & after he got cut he still did the glass

  • @shellbournian
    @shellbournian6 жыл бұрын

    Me: oh man he's gonna slice his... yep there it is

  • @LinkTheCoward
    @LinkTheCoward7 жыл бұрын

    Just found this channel. Two hours later, and now I'm hooked. Love your content, keep it up man!

  • @Nofadon

    @Nofadon

    6 жыл бұрын

    same lol

  • @jacobxiang-jiliao365

    @jacobxiang-jiliao365

    6 жыл бұрын

    same bro same

  • @Jack-qi7ef

    @Jack-qi7ef

    6 жыл бұрын

    same

  • @Hello-qc8lb

    @Hello-qc8lb

    6 жыл бұрын

    LinkTheCoward sameee

  • @Yoyo378

    @Yoyo378

    5 жыл бұрын

    I`m afraind i will end up the same :D

  • @baylego
    @baylego7 жыл бұрын

    Every time he fails feels so sincere

  • @lucasmetro

    @lucasmetro

    7 жыл бұрын

    baylego it honestly is the number one thing that keeps me watching his content and not other people's content

  • @TheMuse260

    @TheMuse260

    7 жыл бұрын

    I would have completely abandoned the whole project if even the easiest step failed at my first attempt. These have some real patience

  • @__-cd9ug
    @__-cd9ug7 жыл бұрын

    Coming soon: "How to make a KZread video from scratch", including a camera, microphone, computer and *the internet* made from scratch!

  • @SammyPsk

    @SammyPsk

    6 жыл бұрын

    u could make an "internet" by connecting multiple PCs together :D which is basically internet, but not

  • @celeste4668

    @celeste4668

    6 жыл бұрын

    Its a network so it technically is internet

  • @christopherg2347

    @christopherg2347

    5 жыл бұрын

    I am sure the Internet (as in anything past your router) can be considered a "natural resource" like flowing water and electricity today. But I guess he could start at the camera and then work his way backwards.

  • @socialex

    @socialex

    5 жыл бұрын

    “If I left you alone in the middle of nowhere how long would it take you to send me a text message?” - Joe Rogan (paraphrased)

  • @InfinityArcane
    @InfinityArcane7 жыл бұрын

    3:41 Who else saw that coming...

  • @MladenMijatov

    @MladenMijatov

    5 жыл бұрын

    Pretty much everyone.

  • @jesusalonso4405

    @jesusalonso4405

    4 жыл бұрын

    @@MladenMijatov except for the guy wielding the tool.

  • @kakuella
    @kakuella7 жыл бұрын

    Kids, always wear safety gears when you are using tools

  • @KevinShihKevinFresh

    @KevinShihKevinFresh

    7 жыл бұрын

    That only does so much...

  • @neongooroo

    @neongooroo

    7 жыл бұрын

    SEIFTI IZ NAMBER WAN PRIOWRITY

  • @TheNINDLE

    @TheNINDLE

    6 жыл бұрын

    kakuella safety number on priority

  • @WetWillie67

    @WetWillie67

    6 жыл бұрын

    He has to make them first

  • @jerryrymell4088

    @jerryrymell4088

    6 жыл бұрын

    You probably are a kid.

  • @jordibear
    @jordibear7 жыл бұрын

    Instead of making an optical telescope like this, you could have had a much easier time making a reflector. Because you don't need lenses at all, just mirrors, which are MUCH easier to make and make sure they're clean and pure on the surface. I highly recommend a Newtonian design, as they are the simplest. (though a Cassegrain or Gregorian could be a nice challenge) But (glass issues aside) your optical telescope could be improved by making your lenses thinner. Thick lenses don't quite follow the thin lens equations I presume you used to calculate focal lengths. Focal lengths calculation could also be vastly improved by using a stand/clamp of some sort instead of just holding the lens, which leads to pretty inaccurate results.

  • @htme

    @htme

    7 жыл бұрын

    Good points, thanks! A reflecting telescope is definitely on my future agenda. The most difficult chemical I need to source for the camera film is likely silver. So if I get access to that later this year, I can also use it to make a mirror and attempt a reflecting telescope.

  • @gowdsake7103

    @gowdsake7103

    5 жыл бұрын

    The primary mirror is very accurately ground concave mirror

  • @metatechnologist

    @metatechnologist

    2 жыл бұрын

    Further, he doesn't necessarily need to use glass when making a reflector. He might could use a rock with fine grain and coefficient of expansion close to glass. Even then, if he wanted to he could use obsidian i.e. volcanic glass and make a reflector from that.

  • @writingworks
    @writingworks7 жыл бұрын

    this is one of the best channels on you tube its seriously under subscribed

  • @donovanmorgan7944
    @donovanmorgan79447 жыл бұрын

    It made me cringe when you cut yourself. That looks like it really hurt

  • @mancalacat6333
    @mancalacat63336 жыл бұрын

    *is using diamond cutter* Me: he’s going to cut his finger Him: *cuts finger* Me: welp.

  • @dannygjk

    @dannygjk

    6 жыл бұрын

    He was damn lucky it wasn't worse.

  • @christiansegoviano4273
    @christiansegoviano42737 жыл бұрын

    Like 4 times this dude was told to leave the glass in the kiln for longer, yet he STILL leaves it in for like 10 or 5 hours

  • @dstinnettmusic
    @dstinnettmusic4 жыл бұрын

    This video and your glasses video helped me appreciate why my high school history class made such a big deal out of Galileo making his own lenses. In high school it was like "oh he did his own science experiment. Seeing this I was like "Oh, he wouldn't have been able to make his discoveries without also being very skilled in glass making techniques."

  • @smygsnusare7041
    @smygsnusare70417 жыл бұрын

    Never clicked on a video so fast before.

  • @CreeperGreenMC
    @CreeperGreenMC7 жыл бұрын

    A selfie from scratch wouldn be really interesting. I hope the next glass turns out great ^_^

  • @marianopesa298

    @marianopesa298

    7 жыл бұрын

    CreeperGreenMC too fucking difficult

  • @CreeperGreenMC

    @CreeperGreenMC

    7 жыл бұрын

    mariano pesa I think the optics will be the hardest thing but i think a primitive camera does not need tremendously much.

  • @emilclaudell

    @emilclaudell

    7 жыл бұрын

    CreeperGreenMC something like a pinhole camera could be fairly doable I believe

  • @CreeperGreenMC

    @CreeperGreenMC

    7 жыл бұрын

    emilclaudell Yeah, but Lewis said that Andy should use his knowledge in optics to make one. So probably something a bit more advanced

  • @emilclaudell

    @emilclaudell

    7 жыл бұрын

    CreeperGreenMC yeah, just watched the video till the end, sorry about that

  • @DimiY26
    @DimiY267 жыл бұрын

    that cut looked painful AF

  • @nikolaythebest
    @nikolaythebest7 жыл бұрын

    There is a ton of channels on youtube sponsored by the Grand Courses but I think yours is the most related in content than any other because you are always trying to learn new skills and then you teach us what they are about and maybe inspire young minds with your awesome content. Love your channel, keep it up. ;)

  • @Gammaduster
    @Gammaduster7 жыл бұрын

    I love that you put Lewis' ideas into practive. I absolutely enjoyed his book.

  • @kavivarun9121
    @kavivarun91217 жыл бұрын

    2:15 that is brighter than my future

  • @amorembalming
    @amorembalming7 жыл бұрын

    these videos are nothing less than stunning. Thank you so much for making them.

  • @thisstuffido9141
    @thisstuffido91417 жыл бұрын

    Love the video. I'm just getting into glasswork and telescopes over the last few weeks, so perfect timing.

  • @vincentreyes4332
    @vincentreyes43326 жыл бұрын

    this makes you appreciate the work people put into making stuff that works

  • @lucasmetro
    @lucasmetro7 жыл бұрын

    DUDE A SPONSORSHIP!!! IM SO PROUD OF YOU DUDE! START A FREAKING PATREON AND A PAYPAL! People love your shit (like me) and we ALL want you to succeed at this!!!

  • @timothycormack1129
    @timothycormack11295 жыл бұрын

    Thanks for the video. Very cool. Love how you stay true to making things from scratch. Question: do you have to use glass or can I mill clear acrylic to the right arc and get passible results? Again, love your enthusiasm and projects. Thanks so much.

  • @weneedmoreconsideratepeopl4006

    @weneedmoreconsideratepeopl4006

    Жыл бұрын

    depends on whether the refractive index of the acrylic chunk is similar to glass

  • @humblesoldier5474
    @humblesoldier54747 жыл бұрын

    I had a shiver go up my spine seeing that accident. I'm not squeamish, just really empathetic. Half felt that cut.

  • @pepsdeps
    @pepsdeps7 жыл бұрын

    I appreciated that you used recycled glass. Good for the environment, and gives you clearer glass

  • @william7881
    @william78817 жыл бұрын

    Great courses plus sponsored wendover and real life lore I think so thank you for supporting my favourite channels great courses

  • @that_laughing_hyena
    @that_laughing_hyena7 жыл бұрын

    speaker and tube amplifier from scratch ?

  • @jacobkelly3863
    @jacobkelly38637 жыл бұрын

    KEEP DOING THIS!!! This series is bloody great content man!

  • @HelloQro
    @HelloQro7 жыл бұрын

    really awesome video as always, it really saddens me that glass making is still an issue but at the same time make me appreciate something that i take for granted. keep up the awesome job, hope you finally nail glass making in upcoming videos.

  • @Tyler-ho8ts
    @Tyler-ho8ts7 жыл бұрын

    I hope your finger heals up quick, that looked really painful!

  • @aleks2912
    @aleks29127 жыл бұрын

    Subbed, videos are definitely interesting. Why do you only have 220k, you should have way more, the production and editing is great aswell.

  • @jbaltusstuff5908
    @jbaltusstuff59087 жыл бұрын

    So far the most satisfying and interesting KZread channel, keep up with the great work!

  • @them8tysibulba
    @them8tysibulba6 жыл бұрын

    I dont know why, but your videos help me make my physicsexercises when i just listen to them on headphones, thank you and amazing amount of crativity you come up with

  • @joshuagarcia5517
    @joshuagarcia55177 жыл бұрын

    I've been wanting a telescope for the longest

  • @phroginator
    @phroginator7 жыл бұрын

    Next up on How to Make Everything: A Child

  • @mariuscaderea8558

    @mariuscaderea8558

    5 жыл бұрын

    Ohoo

  • @mariuscaderea8558

    @mariuscaderea8558

    5 жыл бұрын

    Maybe "how to make an accidend"... sorry, I mean "you"

  • @georgeb.wolffsohn30

    @georgeb.wolffsohn30

    3 жыл бұрын

    Really easy. For some, too easy.

  • @stephenrhodes5674
    @stephenrhodes56747 жыл бұрын

    This is awesome! I'm planning on becoming an engineer and everything you do is quite inspirational!

  • @SigmaTech
    @SigmaTech7 жыл бұрын

    One time my 7th grade Life Science teacher at Hale (Dr. Gros) assigned a class project to either make a microscope, telescope or periscope. Microscopes got the highest points followed by a telescope and lastly the periscope.

  • @CarlosQ24
    @CarlosQ247 жыл бұрын

    9:15 You should go try growing a garden :D

  • @fredrikgit
    @fredrikgit7 жыл бұрын

    Can you make liquorice from scratch?

  • @winstondrivein
    @winstondrivein7 жыл бұрын

    Found my way over from king of random and Cody's Lab. Love the collaboration!!

  • @Cloobornius
    @Cloobornius7 жыл бұрын

    So excited for this camera idea

  • @TatsukiHashida
    @TatsukiHashida7 жыл бұрын

    Yes, finally!

  • @TatsukiHashida

    @TatsukiHashida

    7 жыл бұрын

    Telescope!

  • @TatsukiHashida

    @TatsukiHashida

    7 жыл бұрын

    Lol I was first

  • @zabbo1557
    @zabbo15577 жыл бұрын

    make a watch

  • @DaddyGamerReviews
    @DaddyGamerReviews7 жыл бұрын

    Can't wait for you to nail the glass! It'd then be cool to see you go back and replace the glass for all the other projects!

  • @philgiglio7922
    @philgiglio79222 жыл бұрын

    FYI broken bits of glass are often thrown into a new batch of glass.

  • @omarrodriguez9009
    @omarrodriguez90097 жыл бұрын

    You are an extremely creative and smart man. I admire how you can pull off these proyects.

  • @sparkywolftail
    @sparkywolftail7 жыл бұрын

    good job. You spent a long time working on this. you deserve more subd

  • @alexsantibanez9596
    @alexsantibanez95966 жыл бұрын

    Thank you for showing me this type of knowledge it opens many opportunities

  • @checkitmug7448
    @checkitmug74486 жыл бұрын

    1 saw the formal suit one and it was really nice!

  • @Ouchie
    @Ouchie7 жыл бұрын

    I expected that finger cut

  • @user-wt4fm7gf1f
    @user-wt4fm7gf1f5 жыл бұрын

    Next video: how to make a new finger

  • @sammiller3062
    @sammiller30627 жыл бұрын

    I have a walnut tree in my backyard and extract the pigment from the fermented hulls similar to how you do for the dye except I concentrate mine down and use it as pen ink for my fountain pen.

  • @superbee1233
    @superbee12337 жыл бұрын

    Your approach is clearly, the journey is the reward.

  • @MoFilmsHD
    @MoFilmsHD7 жыл бұрын

    Why did you not make the wood glue from scratch??? Good video though

  • @htme

    @htme

    7 жыл бұрын

    I made animal hide glue before: kzread.info/dash/bejne/ZWyqmaOPhL3Wfdo.html Which was frequently used as a wood glue. I didn't use it for this project though, because I ended up having a tight deadline and didn't want to risk losing a day because my glue didn't hold. I might do a series on making adhesives in the future though, since they'd be a useful supply to have. Making my own duct tape from scratch could be interesting.

  • @MoFilmsHD

    @MoFilmsHD

    7 жыл бұрын

    How To Make Everything ok keep making good content

  • @fravez
    @fravez7 жыл бұрын

    Galileo approves

  • @CeloMellow
    @CeloMellow7 жыл бұрын

    love your videossssssssss we can see all the work you put into them, keep it up

  • @yoissmee1244
    @yoissmee12447 жыл бұрын

    dude!! The slo-mo shots are awesome!!

  • @SatyajitGhana7
    @SatyajitGhana77 жыл бұрын

    ouch

  • @roadboyssweden1711
    @roadboyssweden17117 жыл бұрын

    wow only 200 views

  • @MorrowidAddic
    @MorrowidAddic5 жыл бұрын

    Makes you really think about the great inventions of history, and how long it took to craft the first versions of them.

  • @caseykreie1839
    @caseykreie18397 жыл бұрын

    Great video, as always. Can't wait for the day you create successful telescope. keep up the great videos.

  • @Rufeo0
    @Rufeo07 жыл бұрын

    It might be easier to make a telescope with mirrors.

  • @Rufeo0

    @Rufeo0

    7 жыл бұрын

    Yeah actually I do, do you? You might want to google it...

  • @Eddieboy3385

    @Eddieboy3385

    7 жыл бұрын

    Adam Hill lol get his ass

  • @HeyWelcomeToMyWorld

    @HeyWelcomeToMyWorld

    7 жыл бұрын

    He deleted the comment lol.

  • @htme

    @htme

    7 жыл бұрын

    Once I get access to a source of a material to make a mirror, I'll definitely be making a reflecting telescope.

  • @gowdsake7103

    @gowdsake7103

    5 жыл бұрын

    CURVED mirrors !

  • @Brodym2433
    @Brodym24337 жыл бұрын

    Try to make a refracting telescope, YOU CAN DO IT!

  • @eternalmiasma5586

    @eternalmiasma5586

    6 жыл бұрын

    This is a refracting telescope, you mean a reflecting telescope?

  • @GeoffBernard
    @GeoffBernard7 жыл бұрын

    I really enjoyed the longer format of this video.

  • @iamalongusername
    @iamalongusername5 жыл бұрын

    After watching about 20 of these videos, I really want Andy to be able to make clear glass! Don't give up!

  • @Che8t
    @Che8t7 жыл бұрын

    man, sorry you got hacked

  • @tag_of_frank
    @tag_of_frank7 жыл бұрын

    Grind glass with your bare hand? Why doesn't it shatter ?

  • @JuggaloJD420
    @JuggaloJD4207 жыл бұрын

    really looking forward to seeing an update to this with some better lenses. it looks promising, (the walnut stain worked quite well, to bad im allergic to walnut oils)

  • @oryanastrophotography3450
    @oryanastrophotography34507 жыл бұрын

    I've been here since 4k so glad at the amount you've grown

  • @jasonvong8718
    @jasonvong87187 жыл бұрын

    Rip he got hacked

  • @mekhane.broken9678
    @mekhane.broken96783 жыл бұрын

    I hate light pollution.

  • @mjlombardo04
    @mjlombardo047 жыл бұрын

    the camera idea sounds amazing

  • @marcelo626able
    @marcelo626able7 жыл бұрын

    I like how Louis is like his sensei, always setting a new goal haha

  • @milkdrinker7
    @milkdrinker77 жыл бұрын

    booo. you should make a video completely dedicated to *successfully* making clear glass to get my boo revoked.

  • @theMoporter

    @theMoporter

    7 жыл бұрын

    TheBlapman He's already said he's going to.

  • @thefarmlifeinhd
    @thefarmlifeinhd4 жыл бұрын

    During the annealing process of glass, your forth was one with the the "slag" lol. Interesting how its at the end, rather on top as in most metals where it can be on top of the molten metal than generally is removed.

  • @johnjriggsarchery2457
    @johnjriggsarchery24577 жыл бұрын

    This was great!

  • @ethnameiger5759
    @ethnameiger57595 жыл бұрын

    My teacher shows us his videos all the time lmao i love this channel

  • @r.j.2955
    @r.j.29557 жыл бұрын

    Please do not ever hurt yourself like that. You don't deserve that. You work so hard to create these things, not just so you can get a deep cut. I am glad you didn't hurt yourself insanely.

  • @jebowlin3879
    @jebowlin38797 жыл бұрын

    Whether it worked or not, that telescope is a beautiful piece of rustic woodwork, nice work

  • @AlbertWestra
    @AlbertWestra7 жыл бұрын

    You know Andy, you are doing an awesome job! I have a thought that might also help you and also get your audience involved. How about setting up a PO box so people could try to send you raw material you would need?

  • @mathewsimper20
    @mathewsimper207 жыл бұрын

    Hey I've never seen your videos untill today, I have subscribed. Very nice and original Chanel

  • @Lana-md4zp
    @Lana-md4zp6 жыл бұрын

    Oof that cut you got must've hurt and love your hard work you earned yourself a subscriber 😊💜

  • @paramanandchandawarkar2046
    @paramanandchandawarkar20463 жыл бұрын

    Greatly explained !👍👍👍

  • @ThePeteski1111
    @ThePeteski11115 жыл бұрын

    5:07 lol, I made some of the parts in your water heater, Greetings from Canada

  • @StudioCluiss
    @StudioCluiss5 жыл бұрын

    Thats awesome! Wish i had a way to melt glass

  • @MiracleWinchester
    @MiracleWinchester5 жыл бұрын

    I’m so emotionally weak. After watching him make stuff for hours of video content on the channel, I’m falling in love.

  • @aidanwansbrough7495
    @aidanwansbrough74956 жыл бұрын

    That looks like a really cool project!

  • @alexanderhuff8758
    @alexanderhuff87587 жыл бұрын

    Do you know why the glass takes so long to heat up? You said 5 hours right? Is it a matter of the heat input? Or burning off impurities?

  • @JackSpiggle
    @JackSpiggle7 жыл бұрын

    Scratch built spring pole lathe could be a pretty fun project for you!!

  • @ZXY101
    @ZXY1017 жыл бұрын

    These videos are really great.

  • @NickMayers-rj9zn
    @NickMayers-rj9zn6 жыл бұрын

    I'm just wondering, and this might sound stupid but could you take out the air bubbles from the glass by using a vacuum chamber using the same material as the crucible and make the lid transparent, this way you could put in the boiling hot crucible with molten glass into the vacuum chamber and take out the bubbles, granted the glass may solidify before taking out any good amount of air bubbles. just a thought.

  • @dumky
    @dumky7 жыл бұрын

    I'd be curious to see what planning you did ahead of construction. I'm sure you must have some kind of blueprint with focal distances. Maybe you could explain that in a future video?

  • @williamsatterthwaite6063
    @williamsatterthwaite60637 жыл бұрын

    Great video, glad to know if the civilization ends I can still (probably) do astronomy. How much more difficult would it be to make a Newtonian design telescope? (using a concave mirror for the initial light collection) And that oiled wooden framing looks amazing, I wish mine was that fancy!