I want to take a moment to apologize for using an AI-generated voice in this explainer video. I understand that a real human voice can provide a more engaging and personal touch but unfortunately English is my second language. However, I want to assure you that everything else - the script, research, and animation - was done by me with many hours and days of hard work. Your appreciation of this effort means a lot to me. As my channel grows and I receive more support from viewers like you, I plan to invest in professional voiceover services to enhance the quality of my content. Your understanding and support are greatly appreciated, and I am committed to continuously improving the experience for all of you. Thank you for being a part of this journey.
Do not listen to any moron that comply about AI voice. People should be asking you where to donate money for such an outstanding free content even if there was NO audio at all. Do you work alone, or you have a team? Which software do you use? How many hours it take to: A. Design the model ? B. Animate it ? C. Edit the video? Thank you for the superb content!! PD: 1. I myself own a 10/10 curta. 2. I have deep knowladge about a ton of 3D softwares (Houdini, C4D, 3Ds max, blender, SketchUp, AutoCAD, Fusion, etc.. but I am absolutely stunned by your skills.) 3. I own few golden playbuttons, so If you need any free (and good) advice about YT, write me.😉
@@protosfotod2416 Thank you..that is encouraging. I also understand the people that don't like AI voices. I am also trying to use my own voice. To answer your questions: Yes, I work alone..I have mechanical engineering background so it helps me when I'm researching a topic. I found 3d model on the curta page, by someone named mwu. But since it is designed in CAD, I have to clean up the poly to get proper shading. I use Blender for all 3d works, and the whole thing is rendered in Blender Cycles. Took me a week to animate all that, and another week for rendering. For editing, I use Filmora with its built-in effects and texts and just took me a day to combine all those renders into a finished video. It would be great to own a golden playbutton, I would appreciate the advice..🤓🤓🤓
@@quasar-ed Thank you for taking the time to answer all my questions! Really impressive work! About the AI voice, my advice is to try to not pay atention to someone that complain about the AI thing. Feedback from the viewers is important, but make sure to not care too much, especially if you believe that what you do is fine. I remember how much it affected me to spend 3 months designing, building, recording and editing a DIY telescope video, only to be told - "why do you pretend to have a spanish voice?", or "...and what if I do not have a 3D printer?" If you want to become big (and you DAMN SURE have the skills and potential) make sure to not care that much about people oppinion and trust your instincts + YT analytics. If you don't believe me, just check the comment section of my second most succesfull video - th-cam.com/video/G5gVkriPzZs/w-d-xo.htmlsi=xbevXNxYozkXcWYh
The AI voice does bother me a little bit, but the quality and content of your video and animations are astounding, and you must be congratulated! Maybe we will find your voice and accent charming, just get a good mic and try!
I have to say this series blew my mind with how much detail you've crammed into these videos! I've always loved the Curta calculators but this is the first time I've really understood how they work. Awesome stuff!
This is amazing. I've seen a few videos on the Curta calculator before, but never such a thorough explanation. For the first time, I actually *understand* how it works.
Curta calculator is indeed the marvel of engineering. but, on the other hand, you, by making this video, did no less than Curt Herzstark. what a joy to watch.
Excelelnt visualization, it was hard to find such a detailed explanation before! And I agree, the ten power shift is simple and obvious which makes it even more genious
Despite a few animation and model errors that didn’t really matter, you have done your homework very well! These are clearly the two most detailed (and correct) videos on how the device works, I couldn’t find any errors in your script! You introduced concepts progressively, and I found it nice that you talked of ten’s complements to later acknowledge the carrying “gotcha”. This is a nice way to understand the reason behind 9’s complements, I usually only hear of the “9’s complements then add one” method, and never really questioned why 🤔 Just a note: the clearing lever needs to be raised with the carriage in order to turn, it would have been nice to show how this lock works, since you took the time to explain all the other ones 👍
7:00 Usually the tens complement of an n-digit number x is defined as 10^n - x, so the tens complement of 45 is actually 100 - 45 = 55, not 65. But it's equivalent to the nines complement plus one, so your later explanation of what the calculator does is correct.
This video really makes me wonder what operating one would feel like, if you can feel all the little gears inside meshing when you do an operation that triggers a huge shift across the whole set and if you can feel more resistance in those cases. Also loved the details on all of the little safeguards that were put in place to make it harder to make mistakes while operating.
I am lucky enough to own one, and I can confirm that it is a very tactile experience! If you take some time to turn the handle you can definitely hear individual gears, feel the carry levers springs resist, and there’s a different amount of resistance between adding and subtracting (due to the 9’s complement actioning many more gears). Though, when you just use it because you want a result, you turn the handle so fast that you just hear some clicks and a high-pitched hiss caused by the ratchet mechanism.
I have the type one and type two, now and then. i have to watch videos like this just to remind myself about the mechanical beauty of the Curta devices. Down right unbelievable that Mr Hertzstark could design and build this device under unbelievable harsh environment of german concentration camp.....
Honestly I don’t mind your current AI voice because it doesn’t seem to have any of the problems people tend to have with AI voices which are Random and unpredictable changes in pitch, volume and pronunciation like the one from your earlier videos this one however sounds extremely smooth and natural it’s honestly on par or better than most of the major AI voices like Alexa or Siri also your work is extremely detailed and you make stuff really easy to understand so I forget that it’s AI by the half way point of the video I think your doing a great job I’m already subscribed and I can’t wait to see what you plan on doing in the future if I make if I can make a suggestion the dom Tower of Utrecht is really interesting
@@moonlitblackcat1438 Yeah..this AI voice is better than others, since it is a paid service. But I gonna try my own voice though and see how people accept. Please feel free to suggest, and if there are enough information for me to research online, I will surely make a video..That one you mentioned I don't know what it is so I gonna take a look. Your suggestions is highly appreciated. Thank you for your support..🤝🤝
This answered all the questions i still had about the curta. This was so well made! Bot the video and the curta :p thanks for this explanation! I learned a lot. Not only about how the curta works but also more about mechanics in general. It's kind of a shame how much of this clever engineering is replaced these days by software and electronics (and I say that as programmer myself!) While they too are definitely interested and clever in my opinion, I do feel we lost something with the way we so quickly grab electronics as first solution to our issues where as a perfectly viable, or even better mechanical solution may exist. You gained an subscriber and I hope to learn much more from you :) I will be honest the ai voice did make me a bit apprehensive in the first part of these 2 videos but I understand why you used it and don't hold that against you. It's unfortunate that some content farms also use ai voices as it has tainted its use, but it is a useful tool for those who for what ever reason they may have aren't able to speak English (or whatever the language may be of the video) themselves. I saw your apology for it but I kind of feel the need to apologise myself almost ^^" it isn't some evil or anything to use the voice but I understand why people, including myself, are made skeptical when we hear it. That said, the quality of this video has fully blown my expectations out of the water and my scepticism was unfounded. I hope to see more of you in the future :3
@@HildeTheOkayish Thank you so much for your appreciation. People like you encourage me to keep making these videos. I really love to explain what I understand. I also very much appreciate the other people who explain what I don't understand. I am crazy about knowledge, especially how things work. So I use my skill as 3d artist and my understanding to make these videos in my spare time. I hope I can do it full time if enough people are interested. Yeah these content farms ruin the ai voice. Now my channel kind of bring some revenue but still not the amount I can afford for proper voiceover artist. Anyway, great to see someone who appreciate knowledge like me.
Wonder if its the modern version of the Antikythera mechanism. Intricate beautiful and functional. Now that you have that digitized have you sent it to have a machine shop to craft a new one from scratch? Modern machining to make a fidget spinner for a nerd.
Does the Curta accept mixed addition techniques? In other mechanical calculators, you can multiply with some interesting techniques to reduce work even further. Take 1347×385. Under the standard setup described, we turn the crank a total of 16 times, but we may be able to reduce that by using the following: 1347×385=(134700×3)+(13470×8)+(1347×5) Or 1347×385=(134700×4)-(13470×2)+(1347×5) So set the carriage to the hundreds place, add 4 times, move over to tens place, subtract twice, then in ones place add 5 times, for a total of only 11 cranks.
This is actually advised in the user manual. You can even go in negative territory if you multiply by, say, 19. You start by subtracting 1 turn, which goes below zero and the display is all 9s, then you shift the carriage and turn twice to get your result. Not only that, but you can actually also compute and read negative numbers, they’re just written in 9’s complements. 9…999238 is actually −762.
@@quasar-ed Eh, I think you've missed something... The equation was 2567*487, (256700*5) *minus* (25670*3) *minus* (2567*3) should give the same result. 5 for borrowing, 3 for 10s compliment and borrowing, then 3 for 10s compliment.
@@koppadasao Well, the subtraction equation doesn't give the correct answer for 2567x487. So I don't think it would work. The carriage shifting is used for multiplying with larger numbers, so it uses addition. Though I don't know all the other Curta algorithms..correct me if I'm wrong..
@@quasar-ed You're right, at least partially. It's 1 more for borrowing on the most significant digit, then followed by 9s compliment, ending with 10s compliment on the least significant digit. (256700*5)-(25670)-(2567*3)=2567*487=1 250 129
14:07: I thought I outsmarted the calulator by changing modes inbetween the calculation, just to hear that they already acounted for this, now I feel dumb
Holy cow! I've never heard of these before, and it's amazing! I want one. And has anyone compared the Antikithera mechanism? Because it looks like it could be a more modern version of it. So, I also wonder if Templars and Masons have anything to do with using ancient knowledge to create these. The lineage might be spot on.
I love mechanical things, I can only imagine this first started as a giant machine and slowly became miniaturized. It's really a shame that history of calculators I remember from school basically jumped from the Abacus to the oldest digital calculators. Like the The Antikythera mechanism, used 2000 years ago. Can you imagine if they had figured out how to make this too? We'd probably be visiting other solar systems by now. I'd love to try one of these some day, although I'd probably wear it out fidgeting with the little mechanisms.
@@djrmarketing598 Yeah. The rise of transistors wiped out all the mechanical devices. Now we are left with unimaginably complicated chips that are controlled by a handful of tech corporations.
I want to take a moment to apologize for using an AI-generated voice in this explainer video. I understand that a real human voice can provide a more engaging and personal touch but unfortunately English is my second language. However, I want to assure you that everything else - the script, research, and animation - was done by me with many hours and days of hard work. Your appreciation of this effort means a lot to me. As my channel grows and I receive more support from viewers like you, I plan to invest in professional voiceover services to enhance the quality of my content. Your understanding and support are greatly appreciated, and I am committed to continuously improving the experience for all of you. Thank you for being a part of this journey.
Do not listen to any moron that comply about AI voice. People should be asking you where to donate money for such an outstanding free content even if there was NO audio at all.
Do you work alone, or you have a team? Which software do you use?
How many hours it take to:
A. Design the model ?
B. Animate it ?
C. Edit the video?
Thank you for the superb content!!
PD:
1. I myself own a 10/10 curta.
2. I have deep knowladge about a ton of 3D softwares (Houdini, C4D, 3Ds max, blender, SketchUp, AutoCAD, Fusion, etc.. but I am absolutely stunned by your skills.)
3. I own few golden playbuttons, so If you need any free (and good) advice about YT, write me.😉
@@protosfotod2416 Thank you..that is encouraging. I also understand the people that don't like AI voices. I am also trying to use my own voice.
To answer your questions:
Yes, I work alone..I have mechanical engineering background so it helps me when I'm researching a topic.
I found 3d model on the curta page, by someone named mwu. But since it is designed in CAD, I have to clean up the poly to get proper shading.
I use Blender for all 3d works, and the whole thing is rendered in Blender Cycles.
Took me a week to animate all that, and another week for rendering.
For editing, I use Filmora with its built-in effects and texts and just took me a day to combine all those renders into a finished video.
It would be great to own a golden playbutton, I would appreciate the advice..🤓🤓🤓
@@quasar-ed Thank you for taking the time to answer all my questions!
Really impressive work!
About the AI voice, my advice is to try to not pay atention to someone that complain about the AI thing. Feedback from the viewers is important, but make sure to not care too much, especially if you believe that what you do is fine. I remember how much it affected me to spend 3 months designing, building, recording and editing a DIY telescope video, only to be told - "why do you pretend to have a spanish voice?", or "...and what if I do not have a 3D printer?"
If you want to become big (and you DAMN SURE have the skills and potential) make sure to not care that much about people oppinion and trust your instincts + YT analytics.
If you don't believe me, just check the comment section of my second most succesfull video - th-cam.com/video/G5gVkriPzZs/w-d-xo.htmlsi=xbevXNxYozkXcWYh
@@protosfotod2416 That's great advice, thank you..😇😇
The AI voice does bother me a little bit, but the quality and content of your video and animations are astounding, and you must be congratulated! Maybe we will find your voice and accent charming, just get a good mic and try!
This is got to be one of my favorite "how its made" series. The animation and explanation is so good I can't wait for more!
This part 2 is the last part for Curta. Let me know what device you like to see next..
This series of Curta is incredible. I absolutely love it
I have to say this series blew my mind with how much detail you've crammed into these videos! I've always loved the Curta calculators but this is the first time I've really understood how they work. Awesome stuff!
@@matt-lang Thank you..
you did absolutely amazing work, my friend. i am absolutely stunned by your deep research, understanding and time to animate it to such detail.
@@Laowater I tried my best. Thank you for your support..😇
This is amazing. I've seen a few videos on the Curta calculator before, but never such a thorough explanation. For the first time, I actually *understand* how it works.
@@zounds010 Glad to hear that..
3D explanations are awesome.
Which makes this device even more extraordinary, as it was designed without any CAD software.
Mind blowing.
@@smoker_joe exactly..
This is genuinely amazing, what a smart guy, so many moving parts all working together. In a compact design.
Curta calculator is indeed the marvel of engineering. but, on the other hand, you, by making this video, did no less than Curt Herzstark. what a joy to watch.
@@tsraikage Thank you for your appreciation. It means a lot.
Excelelnt visualization, it was hard to find such a detailed explanation before! And I agree, the ten power shift is simple and obvious which makes it even more genious
@@fluffy_tail4365 Yeah, it's what impresses me the most..
Despite a few animation and model errors that didn’t really matter, you have done your homework very well! These are clearly the two most detailed (and correct) videos on how the device works, I couldn’t find any errors in your script!
You introduced concepts progressively, and I found it nice that you talked of ten’s complements to later acknowledge the carrying “gotcha”. This is a nice way to understand the reason behind 9’s complements, I usually only hear of the “9’s complements then add one” method, and never really questioned why 🤔
Just a note: the clearing lever needs to be raised with the carriage in order to turn, it would have been nice to show how this lock works, since you took the time to explain all the other ones 👍
@@LarsTheOctopus Thank you for the compliment. I didn't know about the clearing lever lock. I thought it is just simple as it is..
Given the complexity of this machine, I think it would've been easier for Mr. Herzstark if he just invented the integrated circuit. Amazing.
If you understand basic principles. You can build or invent anything.
Thanks!
Thank you so much..🤩
Thank you for the great explanations and magnificent videos. A real gift and homage to historical engineering!❤
Glad you enjoyed it!
Glad you like it....
Excellent explanation! Suffering from some degree of dyscalculia, I particularly liked the subtraction method by adding nines' complements. Genius!
@@okjhum Truely genius...
7:00 Usually the tens complement of an n-digit number x is defined as 10^n - x, so the tens complement of 45 is actually 100 - 45 = 55, not 65. But it's equivalent to the nines complement plus one, so your later explanation of what the calculator does is correct.
Yes!!! I subscribed yesterday to catch part two, awesome!!!
@@chadb9270 Thank you..I hope u like the part2.
This video really makes me wonder what operating one would feel like, if you can feel all the little gears inside meshing when you do an operation that triggers a huge shift across the whole set and if you can feel more resistance in those cases.
Also loved the details on all of the little safeguards that were put in place to make it harder to make mistakes while operating.
yeah..it would feel unique unlike the electronic calculators.
I am lucky enough to own one, and I can confirm that it is a very tactile experience! If you take some time to turn the handle you can definitely hear individual gears, feel the carry levers springs resist, and there’s a different amount of resistance between adding and subtracting (due to the 9’s complement actioning many more gears).
Though, when you just use it because you want a result, you turn the handle so fast that you just hear some clicks and a high-pitched hiss caused by the ratchet mechanism.
I have the type one and type two, now and then. i have to watch videos like this just to remind myself about the mechanical beauty of the Curta devices. Down right unbelievable that Mr Hertzstark could design and build this device under unbelievable harsh environment of german concentration camp.....
Honestly I don’t mind your current AI voice because it doesn’t seem to have any of the problems people tend to have with AI voices which are Random and unpredictable changes in pitch, volume and pronunciation like the one from your earlier videos this one however sounds extremely smooth and natural it’s honestly on par or better than most of the major AI voices like Alexa or Siri also your work is extremely detailed and you make stuff really easy to understand so I forget that it’s AI by the half way point of the video I think your doing a great job I’m already subscribed and I can’t wait to see what you plan on doing in the future if I make if I can make a suggestion the dom Tower of Utrecht is really interesting
@@moonlitblackcat1438 Yeah..this AI voice is better than others, since it is a paid service. But I gonna try my own voice though and see how people accept. Please feel free to suggest, and if there are enough information for me to research online, I will surely make a video..That one you mentioned I don't know what it is so I gonna take a look. Your suggestions is highly appreciated. Thank you for your support..🤝🤝
This answered all the questions i still had about the curta. This was so well made! Bot the video and the curta :p thanks for this explanation! I learned a lot. Not only about how the curta works but also more about mechanics in general.
It's kind of a shame how much of this clever engineering is replaced these days by software and electronics (and I say that as programmer myself!) While they too are definitely interested and clever in my opinion, I do feel we lost something with the way we so quickly grab electronics as first solution to our issues where as a perfectly viable, or even better mechanical solution may exist.
You gained an subscriber and I hope to learn much more from you :)
I will be honest the ai voice did make me a bit apprehensive in the first part of these 2 videos but I understand why you used it and don't hold that against you. It's unfortunate that some content farms also use ai voices as it has tainted its use, but it is a useful tool for those who for what ever reason they may have aren't able to speak English (or whatever the language may be of the video) themselves. I saw your apology for it but I kind of feel the need to apologise myself almost ^^" it isn't some evil or anything to use the voice but I understand why people, including myself, are made skeptical when we hear it. That said, the quality of this video has fully blown my expectations out of the water and my scepticism was unfounded. I hope to see more of you in the future :3
@@HildeTheOkayish Thank you so much for your appreciation. People like you encourage me to keep making these videos. I really love to explain what I understand. I also very much appreciate the other people who explain what I don't understand. I am crazy about knowledge, especially how things work. So I use my skill as 3d artist and my understanding to make these videos in my spare time. I hope I can do it full time if enough people are interested. Yeah these content farms ruin the ai voice. Now my channel kind of bring some revenue but still not the amount I can afford for proper voiceover artist. Anyway, great to see someone who appreciate knowledge like me.
An amazing engineering design.
Fantastic video 🎉❤
What a beautiful mechanism
@@Lam-s-Workshop yeah..so beautiful..
Excellent video, thanks for sharing. The only problem is that now I want to buy a Curta Calculator ...
@@TheRojecas Go buy it man..👏👏👍👍
It's like today's quantum computer ❤
Wonder if its the modern version of the Antikythera mechanism. Intricate beautiful and functional. Now that you have that digitized have you sent it to have a machine shop to craft a new one from scratch? Modern machining to make a fidget spinner for a nerd.
Extraordinary video!
Amazing work very good !
@@tobiaskarl4939 Thank you.
Does the Curta accept mixed addition techniques? In other mechanical calculators, you can multiply with some interesting techniques to reduce work even further. Take 1347×385. Under the standard setup described, we turn the crank a total of 16 times, but we may be able to reduce that by using the following:
1347×385=(134700×3)+(13470×8)+(1347×5)
Or
1347×385=(134700×4)-(13470×2)+(1347×5)
So set the carriage to the hundreds place, add 4 times, move over to tens place, subtract twice, then in ones place add 5 times, for a total of only 11 cranks.
@@ProactiveYellow yes..as long as it consists of addition and subtraction, you can do any number of them..
This is actually advised in the user manual. You can even go in negative territory if you multiply by, say, 19. You start by subtracting 1 turn, which goes below zero and the display is all 9s, then you shift the carriage and turn twice to get your result.
Not only that, but you can actually also compute and read negative numbers, they’re just written in 9’s complements. 9…999238 is actually −762.
19:47 Wouldn't the calculation (256700*5)-(25670*3)-(2567*3) also work?
Yes, it works in subtraction too, but it won't be 2567 x 533 without the addition, not sure if that's what you mean..
@@quasar-ed Eh, I think you've missed something... The equation was 2567*487, (256700*5) *minus* (25670*3) *minus* (2567*3) should give the same result. 5 for borrowing, 3 for 10s compliment and borrowing, then 3 for 10s compliment.
@@koppadasao Well, the subtraction equation doesn't give the correct answer for 2567x487. So I don't think it would work. The carriage shifting is used for multiplying with larger numbers, so it uses addition. Though I don't know all the other Curta algorithms..correct me if I'm wrong..
@@quasar-ed You're right, at least partially. It's 1 more for borrowing on the most significant digit, then followed by 9s compliment, ending with 10s compliment on the least significant digit.
(256700*5)-(25670)-(2567*3)=2567*487=1 250 129
@@koppadasao Now it works..that's interesting..
14:07: I thought I outsmarted the calulator by changing modes inbetween the calculation, just to hear that they already acounted for this, now I feel dumb
Holy cow! I've never heard of these before, and it's amazing! I want one. And has anyone compared the Antikithera mechanism?
Because it looks like it could be a more modern version of it. So, I also wonder if Templars and Masons have anything to do with using ancient knowledge to create these. The lineage might be spot on.
Subscribed 🎉
Very cool.
I love mechanical things, I can only imagine this first started as a giant machine and slowly became miniaturized. It's really a shame that history of calculators I remember from school basically jumped from the Abacus to the oldest digital calculators. Like the The Antikythera mechanism, used 2000 years ago. Can you imagine if they had figured out how to make this too? We'd probably be visiting other solar systems by now. I'd love to try one of these some day, although I'd probably wear it out fidgeting with the little mechanisms.
@@djrmarketing598 Yeah. The rise of transistors wiped out all the mechanical devices. Now we are left with unimaginably complicated chips that are controlled by a handful of tech corporations.
Even more incredible is that much of the work by Curt Herzstark was done in Buchenwald concentration camp under constant threat of death.
Well done! Made me want to go out and buy one, but at ~$1,000 US, they're a little out of my range!
@@muzvid Yeah..I feel you..
imagine having to come up with this instead of only having to understand it
Damn, this is an amazing video!
Step drum what are you doing?!
This looks like a nightmare to repair.
let's not think about that..
@@quasar-ed agreed
There we have a perfect mechanical unit. Bring it to venus
Advanced linear expressions*1,000,000,000.I have an IQ of 146. My name is Evan Michael Clough.
Curta is bad. (Commenting for the algorithm)