This is the talk page for discussing improvements to the Antikythera mechanism article. http://acarol.woz.org/antikythera_mechanism.html, http://bricksafe.com/pages/WillPilgrim/Antikythera, https://github.com/MaartenKool/Projects-Antikythera, https://web.archive.org/web/*/http://acarol.woz.org/AntikytheraTopLarge.jpg, https://makermotor.com/pn00309-150-12v-brushless-dc-bldc-115v-230v-ac-gearmotor-reversible-variable-speed-drive-150rpm-maximum-nema-23-frame/, https://www.facebook.com/photo.php?fbid=10155892493004972&set=a.145069854971.142473.558399971&type=3&theater, http://www.exploresequoiakingscanyon.com/dark-sky-festival.html, https://www.youtube.com/watch?v=RLPVCJjTNgk, Rebrickable thinks you are from US with the IP address 198.71.239.15. You are very welcome. A whole lot of people know how to make a CPU. https://www.anythingaboutcars.com/early-1900s-cars.html, https://www.thingiverse.com/thing:1821540. He'd discovered that an axis seen end-on was actually 2 axes, if I remember correctly. I suggest contacting Edgerton (from these comments). Today, we find a 2000-year-old computer on the ocean floor. How did a strange lump of bronze and decayed wood discovered in a shipwreck reveal the first ever computer? This seems to happen a lot. In short, Antikythera mechanism is the most ancient mechanical analog computer know to human kind so far. I'm really surprised at how trouble-free the mechanism has been under more-or-less daily use; early on I had to add bushings to keep two gears from slipping. Since they were all virtually handmade, the cars were outrageously expensive. You are correct. I tried to access your site from the information you supplied, trying many arrangements, but to no avail. https://hn.algolia.com/?query=Antikythera%20comments%3E0&sor... https://www.youtube.com/watch?v=pW-SOdj4Kkk. In 1900, a group of Greek sponge divers were sailing back to Symi, an island in the Rhodes region of Southern Greece. I'm a science teacher and I think this will be a very important build for my students to see... © 2020 Rebrickable Pty Ltd. LEGO® is a trademark of the LEGO Group of companies. I do plan to look at more parts such as axles, etc that you recommend, however - thank you for your reply! No worries, mate. Firstly someone has to create a mechanical calculating technology that is lost to history before being discovered in a shipwreck by a society that has globally networked its modern equivalent. Much appreciated! I'm on the west coast north of Andrew Carol's location so his Saros Dial should work for me, but aside from surfing recent eclipses and trying to guess and match the patter on the Saros dial... even an exact date for a couple of the eclipses (saros spiral level 1-4 and position) would help along with where the hour adjust should be. What book did you read to learn to tie your shoes, or drive a standard transmission? I decided to make a digital model of the Antikythera Mechanism, in order to try and understand better how it worked. I've got the entire right side of the machine calibrated, and it is extremely accurate, and is easy to do, but the left side, I'm at a loss. The oldest extant complex geared device was recovered from a first-century B.C. Their ship was in a channel north of Crete, near the small island of Antikythera. First, for instance, I look at the first part listed which is 8X 3737. The Antikythera mechanism is according to researchers another product of Greece. The Antikythera Mechanism is the world’s first known mechanical computer, used by ancient Greeks to predict the path of planets in the sky, the dates of eclipses, lunar phases, and several religious calendars. Antikythera mechanism, ancient Greek mechanical device made of bronze and used to calculate and display information about astronomical phenomena. I chose the diameter of my gears to be, in millimetres, half the number of teeth so the radius you asked about was a quarter. Got 120 hours and want to become one of them? Information from antiquity is lost by default. Click here for audio of Episode 1031. There's good evidence that this kind of thing was made in the Arab world in the "dark ages" and that many of the moving statues in western europe were powered from the same sort of mechanisms in the medeival period. Turns out there is not a part that connects the bar to the hinge cylinder - the original stock photo of the 1 x 12 bar I had did not show the extension of the bar past the one stud - so all is good. Because the design and engineering greatly outstripped the extant methods of manufacturing the devices didn’t actually work that well. I am OK with the UT concept and how to apply it. So is the next solar eclipse of 21 August 2017, for which the reverse is true. Astrological uses would have depended on the particular astrology being in use. Hope you got it alright. It has puzzled and intrigued historians of science and technology since its discovery. (I believe you are 11 hours ahead of UT, though feel free to check that.) For anyone interested, the Clickspring YouTube channel is recreating the Antikythera Mechanism. I believe that the bulk of knowledge, in most fields, is passed from person to person through active practice, not through books. It is not quite the mystery that the pyramids are, but it definitely will leave the average person scratching their head. It could also be used to track the four-year cycle of the ancient Olympic Games. For people that want to try this with a good quality 3d printer: Jonathan Blow draws some interesting implications of discoveries like this one in a recent talk: There is a really cool LEGO version someone built and you can see on YouTube. I like to research fine weapons. Once the storm passed, they decided to scout the area for sponges be… I'm really surprised at how trouble-free the mechanism has been under more-or-less daily use; early on I had to add bushings to keep two gears from slipping. What is remarkable is how much is crammed into such a small space. The Antikythera mechanism is an mechanical calculator.It is also described as the first mechanical computer.It was discovered in 1901 in a shipwreck off the coast of Antikythera, Greece.A number of gears worked together, much like they do in a mechanical clock.Using a model, it was found that the device could be use to show the motions of the sun, the moon and probably some of the planets. Not sure how they got out of synch with the parts list. The Antikythera mechanism, as it is now known, was originally housed in a wooden box about the size of a shoebox, with dials on the outside and a … I postponed doing this work for almost 3 years. What’s your goal? But if you can get by with something not as complex or fast, and that takes up most of your desk, thousands of people know how to do it. The Antikythera Mechanism, named for the area in Greece where it was discovered, is a mystery in the sense of the genius it required to design such a functional and accurate mechanism. There are three main ways that people have attempted to make an Antikythera Mechanism. The Antikythera mechanism (/ ˌ æ n t ɪ k ɪ ˈ θ ɪər ə / AN-tə-kə-THEER-ə) is an ancient Greek hand-powered orrery, described as the first analogue computer, the oldest known example of such a device used to predict astronomical positions and eclipses for calendar and astrological purposes decades in advance. The Antikythera Mechanism can not possibly be real or have ever worked because the original fragment does not have enough gear wheels to make it run. I not find your Email adress. Got it ! Please send me a message to dan at edgerton dot org and I'd be happy to send the files your way. It is as if knowledge about them was methodically wiped off history, or more likely (since history is written by non-engineers) it was not understood well enough to write about it. Antikythera mechanism has been listed as a level-5 vital article in an unknown topic. :-). And how does posting a Wikipedia article link make it to near the top of Hacker news? The Antikythera Mechanism Front view of the Antikythera Mechanism. It's actually possible to build a working machine lathe out of the parts of an ordinary car engine. The Clickspring creator hasn't provided updates for months on his Antikythera reconstruction, but recently he updated his patreon supporters of the reason why: He has discovered something new about the mechanism, previously unknown, that he is working on publishing. Recently started back up on this effort and found your MOC. The Antikythera mechanism is an ancient mechanical analog computer (as opposed to digital computer) designed to calculate astronomical positions. The most difficult part will be bootstrapping the ability to build accurate tools with which to rebuild an industrial society. Rebuilding an Intel class modern CPU or just making a crude one? Hope you managed to get the build done in the end. If you’re talking about losing the ability to recreate any particular relevant CPU, then. Amazingly enough he forgot to mention this in the end of year presentation of his work, so I got to ask that question to remind him... talk about burying the lede. Been awhile since anyone's posted on this build. Not only is he recreating the mechanism, he's also exploring antique methods and materials that were possibly used. It was probably also used for mapping and navigation. Hello Edgerton, my school is planning to make a Lego Antikythera mechanism. I, too, am quite interested in your work, Mr. Edgerton. I started reverse engineering this project a year ago and have been so busy at work I have not made as much progress as hoped on the actual build. To understand the Antikythera mechanism, what is really needed is more artefacts or texts on mechanical devices from the classical era. They became caught in a storm and were forced take shelter around the island’s main port of Potamós. Do you have anything that can help? Antikythera Mechanism Build. After that it gets complicated. Personally though,  I would just redesign the hand with easier to find technic parts and use axles instead of the bar and antenna. We first give an account of the discovery of the Antikythera treasure, which was found by Symian sponge divers in November 1900. The kids may not understand the saros, but they love watching the gears turn. It’s not the logic but the technology that is not widely known: the new fabs cost billions. Originally, it contained at least 30 gears, dials, scales, axles, and pointers. It's not as hard as you probably think it is. Below is a recreation of the Antikythera mechanism. In fact, eliminating the (US west coast) geographical bias inherent in the original Saros dial was my entire reason for reformulating it. I've taken these, and can say they do a good job of teaching what they say they teach. Among other finds was the Antikythera mechanism, which is the ancient mechanism of the highest level of sophistication among the mechanisms that have been found until now and is considered as the highest technology mechanism in antiquity. The Antikythera Mechanism and now you can make one also. I've also added some text to help explain what each component is doing. ANTIKYTHERA MECHANISM by John H. Lienhard. One of the things most interesting to me about the mechanism is that it devotes a lot of gears and hardware to making small corrections which get completely overwhelmed by the inaccuracy of the manufacturing. It seems like only a handful of people ever made them and it probably didn’t even last for very long after Archimedes died. Thanks for the prompt reply. People died, and there weren't enough new people entering the field to learn it all before the critical mass of knowledge died with them. Thank you Andrew and Sean (WillPilgrim) for all that you have done. This guy on youtube is crowdsourcing a series where he is recreating the mechanism, I like the fact that these devices were well attested in history (. to find out if you can build this MOC! Cars were perceived as no more than a high-priced toy for the rich. The Building Instructions for this MOC can be found on an external site: Create an account and enter your LEGO collection The first teaches "[...] digital encoding of information, principles of digital signaling; combinational and sequential logic, implementation in CMOS, useful canonical forms, synthesis; latency, throughput and pipelining". The Antikythera Mechanism tracked planetary positions, predicted lunar and solar eclipses, and even signaled the next Olympic Games. Especially seeing the recontructioned devices gave me completely new perspective about ancient Greece. Astronomer here. It was discovered in the Antikythera … On a related note: what is humanity's Bus Factor for creating a CPU? If the available Saros dial from the linked site has global events, only some of which are visible from my location, then I should be OK. Make: contributor Chris from Clickspring has an amazing series of videos on YouTube called “Reconstructing the Antikythera Mechanism.” In the series, the ancient and wondrous Antikythera Mechanism is introduced, explained, and then Chris goes about the very challenging task of trying to figure out how each component was made and then making it himself. In short, the dial works for any location on Earth. The device seemed to have a range of interlocking gears made of bronze and a hand crank to give a turning movement to the geared mechanism, plus a display that showed information about the moon, sun and planets against a … Hello Edgerton, . It was essentially an extraordinarily expensive toy. Now, if an eclipse -- solar or umbral lunar -- is visible from somewhere, anywhere on Earth, it's on the dial. Fantastic. I worked pretty much from the gear counts alone. The reformulated Saros dial uses Universal Time (UT) and is good for anywhere if you know the conversion from UT. I built this model using your instructions, with a fellow member of the Gold Coast Techspace. That covers "[...] pipelined computers, virtual memories, implementation of a simple time-sharing operating system, interrupts and real-time, and techniques for parallel processing". It’s a wonder the Antikythera mechanism was discovered at all. Could you please share the Saros dial with us? He has UT Saros dials which are probably much better. I recommend 0.1 layer height and conservative settings for a slow, but high quality print. I am good to go then. The Antikythera Mechanism. Yep. There is no other instrument like it, nothing found until today compares to the Antikythera mechanism and better yet, there are no recorded texts that would suggest that something like it ever existed. Hi All. You have spent a lot of time creating the manual and I wanted to say THANKS!! I highly recomend seeing this device and its recreations live there. Greatly appreciated. If it's an interesting Wikipedia submission, those are on topic. Well, I finally got mine built and calibrated and verified. So if you are wanting to see those bronze fragments in real-time, you have to make a trip to Athens, Greece. I had a friend in honours year computer science who did a project on tomography of the antikythera mechanism (working on image analysis software to remove ghost images of other layers), and helped discover why his advisor's previous model of the mechanism was mechanically immobile (when you turned it, it locked). Our mechanism has been enjoyed by thousands of visitors to our museum over the last three years. Sorry you need to upgrade to the Pro Plan before you can use this feature. OK, I assume that means 8 of part 3737. Great listen here : It could be that the thing just had no use, or that it became obsolete. Also, supposedly, the styrofoam used inside thermonuclear weapons. MANY, MANY thanks, Dan for kindly supplying your time and effort in redesigning the Saros dial! Look like part 30552: Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole on Ends.
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