The machine starts in state A. Tape get's always pulled to the left unless there is a pin in the R coulumn of the program table. Unless a next state is specified, the machine halts. The stick in each field on the tape can be in three states, "b", "0", and "1", as illustrated by the writing on the right side of the machine. The program "binary increment" adds 1 to a binary number, which is the same as changing the rightmost 0 to a 1 and all 1s behind that to 0. 0:53 Second line applies because the machine is in state A and reads "0". The seven fingers on the left side on the machine detect that the machine stays in state A and does nothing particular. 0:57 ... again 1:00 This time the value on the tape is "1", so the first line of the program applies, but it's the same command as the second line. 1:04 ... again 1:08 Now, there is neither a "1" or a "0", but a "b", so the third line of the program applies. It says "R" and "B", which means that the tape pulls back to the right and the state of the machine is now B. Basically, at the beginning the machine just goes right until it finds the end of the data. 1:11 State B, 1 on tape, therefore write 0, go right again and stay in state B. 1:15 ... again 1:19 State B, 0 on tape, therefore write 1 (the carry over) and halt because there are no pins in the "A", "B", or "C" column. The increment of 0011 is 0100.

You've just proved it's possible to build a computer made entirely of wood.

Bravo! First time ever I've seen a FULLY mechanical Turing Machine. I was wondering if it ever could be made.

I'd love to hook this up to a hamster wheel so I could tell people my hamster can do arithmetic.

I just want to thank you Mr Ridel for this marvelous masterpiece. Some kindred spirit from France.

This is one of the coolest things I have ever seen.

this is your brain on wood.

3 states A, B, C, and 3 possible values in each case, 0, 1, b ? Really amazing.

This absolutely blows me away. Fantastic work!

You should definitely pair up with a creator to have a version of this in LegoIdeas. One of the last creation is the "grand piano" it shows there are definitely the mecanical possibilities with something close to your design to have a compact and esthetic mecanical lego turing machine.

Magnificent! Brilliant piece of work! Your camshaft seems to be doing the equivalent of clock cycles - instruction fetch, decode, execute, memory read, memory write. Old electromechnical computers (and pinball machines) had a similar system.

This is one of the most amazing things I have ever seen built from wood :)

Wish you talked us through all the components and how it works.

You, mr. Ridel, are a genius!

I was searching on YT how the machine works. I am not in the field but your work is really above definitions!! congratulations!!! and thanks for sharing

Thanks for great upload. I knocked a couple these this morning. Then after breakfast spent the rest of the day with me feet up !!Happy days

Holy crap, this is absolutely amazing!

Thank you! A museum piece of art.

Pdf link is dead

i.. love.. you.. who ever you are that made this. its so epic :D and great documentation and sketches, only took a couple min to figure out the workings :D

You should sell these! They are amazing!

Mechanical wood computer!!Brilliant

Dude... this device is ludicrously cool... congratulations!

Richard RIDEL provides us with proof of capability to build a 100% computer wooden made! One word to summarize such a thing: fantastic! In addition, il's very beautiful to see the mechanic movements of all pieces! Great job!

Videos like this make my day. To me, this is true modern art.

This is awesome! :-) For those who do not know what "Turing Machine" means and are too lazy to read Wikipedia: The Turing machine was invented in 1936 by Alan Turing, who called it an a-machine (automatic machine) A Turing machine is a mathematical model of computation that defines an abstract machine, which manipulates symbols on a strip of tape according to a table of rules. Despite the model's simplicity, given any computer algorithm, a Turing machine capable of simulating that algorithm's logic can be constructed. The machine operates on an infinite memory tape divided into discrete cells. The machine positions its head over a cell and "reads" (scans) the symbol there. Then, as per the symbol and its present place in a finite table of user-specified instructions, the machine writes a symbol (e.g., a digit or a letter from a finite alphabet) in the cell (some models allowing symbol erasure or no writing), then either moves the tape one cell left or right (some models allow no motion, some models move the head), then (as determined by the observed symbol and the machine's place in the table) either proceeds to a subsequent instruction or halts the computation.

Beautiful, a joy for vision and intelligence. Congratulations, great job!

This is amazing. I had started making this from legos, but haven't come close to finishing it. It is very nice to see that someone else made a real mechanical version of the turing machine tho.

Dude - you are seriously some kind of genius - never seen anything like this - good enough to put into a museum - belongs in the Smithsonian for sure - cheers

this is an incredible piece of work!

Beautiful! Hope to see more.

This is just fantabulous. A thing of beauty!

Wow! Holy shirt! This machine is a MASTERPIECE of design, engineering, workmanship - across the board ASTOUNDING! Superb! Well done, Sir! (BTW - I slammed the "like" & "subscribe" buttons so hard I nearly broke my screen!)

Brilliantly done!

so the mind, the intelligent, the thoughts and the spirit can happen on this wooden machine... so amazing :0

You made that?!? Amazing, man! Great job!

Well. KZfaq algorithm was right on this video. This is absolutely amazing!

Pretty neat design and build , i liked the comment about. The Hamster wheel that was funny i also liked all the different wood species you used The machine looks like something Matthaias Wandel would build as he likes wooden gears and has incorporated them into several projects he has shared on his KZfaq channel

So beautiful just, well done! The logic puzzle alone designing that must have been and so beautifully executed!

awesome! pretty awesome!!! I never thought something is possible with mechanics. Must have been countless headaches to think that out.

Wow, that is really beautiful.

beautiful craftsmanship

This is a masterpiece!

Parabéns, mecanismo primoroso. Like e inscrito.

This is incredibly impressive for many reasons. As a bonus, the comments section reminded me of a word I've not used in some time: pedantic.

I've seen similar things that use binary to accomplish a pluthera of tasks. I am disappointed there was not any greater effort put into the communicating of your goals precisely here. You are obviously an intelligent individual and I would love to hear you share in much greater detail! That'd be amazing! I am right about to check out the link you put in the description. Can't wait!!! I am also saddened to see below so many people insult others who asked to have a more direct explanation I think for people to shit talk down a curious mind is a horrible thing. Asking questions, seeking further explanations on things is wonderful, and is how we all learn & grow. Communication is the key to everything, and I believe some more direct communication would have been wonderful here. And I am proud to see other humans asking questions. It's wonderful! Horay for learning!!

This is freaking amazing. You sir are a (Turing) complete genius. One little suggestion is adding springs to the cam followers so that you can add a motor to the power input and get a better computation speed

This is amazing very fantastic work. I am wondering: what's your feeling for this kind of design to be adapted to more states, you would say: it changes more or less everything and the morphology should be totally rethink, it's possible but with some work, it's in fact quite straightforward to adapt (I am talking about the design step, not the crafting)

Great work!

Could we get a breakdown of the subsystems and how they relate?

I love how the tape Turing machine has another Turing machine as its control unit.

This is a masterpiece

Leonardo could have built one of these. And if he had, there would have been a mechanical wood Internet by the time of Newton. And Newton's wmail to Haley would be arriving right about ... now.

This should be in a museum

I like how the units on the "tape" are just a block holding a rod with 3 possible states all easily measurable and settable

So impressive!! Bravo!

Amazing mechanical energy can do soo much

сколько трудов вложено блин! Классный механизм.

hey, I can't get the onedrive thing to work, it there a google doc or something else I could see?

who needs solar flare vulnerable power supply requiring electromagnetic systems when you can make a system capable of universal computation, out of processed organic matter, and power it with yourself, yourself a thinking being made out of processed organic matter that requires processed organic matter to function. This is the most impressive carpentry and mechanical design I have seen in a long while.

I expect a turing machine to say 'ouch' when I kick it real hard

great work SIR..

Amazing! Literally amazing! 👍

Great work ...

That is truly amazing

What an accomplishment!

Very cool. Ever thought of making a mechanical computer like the German Z1. Its based more on rods and the only electrical component is an electric motor to keep things spinning.

A wise man once asked 'So what does it do'. The inventor nodded and quietly answered 1:35

It is surprisingly relaxing to listen to thing thing clacking.

It's beautifully made, and is clearly performing some sort of logic operation, but a commentary, or notes in the description saying what it accomplishes would have been really good. I tried to follow your link, but it involves opening a new account on Onedrive, and I'm not going to give my credentials to yet another website that may get hacked and lose them for nefarious purposes - not just to see one thing.

The memory access part is not a random access type (+1 or -1 per each sequence), but a well made Turing machine.

Wow, truly F******* amazing!!

Incredible!

Im really enjoying the pdf on this machine

Give this thing 87 miles of data tape and run it at 900MHz and you got a deal

Alan Turing will appreciate if He watched you build a machine like this on KZfaq

Ah, a circumlocution engine. Amazing!

Fantastic!

Now if you made the tape out of a living, growing tree, you could have an actually infinitely long tape!

Brawo PERFEKT

When a joiner decides to study computer engineering.

Wonderful!

Incredible.

This is art

This is what I want for my birthday

looks amazing but what does it do again?

pure genius wow....

This is fucking legendary.

This machine looks absolutely stunning! I just saw this video and I just NEED to get myself one of these :) I have a pretty solid understanding of Turing's machine and have good woodworking skills, but your creation just looks so complex and intricate. Did you by any chance ever end up copying down the various parts? If not, what part would you suggest someone who really wants to make one of these start at? Edit: I got most of the machine parts graphed out, the only part I'm confused on is the reverse. I can see that the metal bar is moved to the right whenever there is a pin in the reverse column, but I cannot tell how exactly that makes the bar that lowers and raises the head use the left gear (egg-shaped thing that pushes it down) instead of the usual right one. Could you perhaps do a top down picture of that region if it isn't too hard? Thanks for your time, and again, great work!

merci à vous

this is so powerful

Amazing.

Stunning! If you use a Tesla Turbine to power it then you would have a Tesla Turing Machine , lol . Have you ever thought about building a FLODAC , Patent 3190554 ? A digital computer that computes using air to say compute log tables would be one of my favorite You Tubes! I like to think that if Babbage had FLOWDAC tech the pipe organ folks could have make his Analytic Engine for him and Lady Lovelace could have invented COBOL.

Very Very Cool.

This is amazing workmanship! When solar flares EMP the earth you are going to save the world.

I love it but was confused at its purpose... tho absolutely love it, amazing, too much to look at👍😁😁😁♥️

Das ist soooooooooo cool, ich brauche auch so ein ding.

So does the clock speed depend on how fast you spin it? If yes, then add a fast motor to it.

Next: graphics card made in wood😊 and great job 👍

is it turing complete though?