Yeh, there were likely multiple such devices in ancient Greco-Rome and across the ancient world in general. A device that uses similar differential gear components is found in ancient China (Han Dynasty) dating to around the same time in the form of the south pointing chariot and the chariot odometer. The ancient Greeks also had an odometer with differential gears made by Hero of Alexandria. The devices made of metal were likely recycled while the ones made of wood would have rotted away.

similar idea with lots of marble roman sculptures were copies of greek bronze sculpture, the bronze where recycled over the centuries for the usual reasons, greed/ destroying pagan / immoral idols.

Yes, and I'd be ready to bet (a very small amount), that anything this complex would have had problems with smooth operation during that time. Antikythera mechanism is maddeningly interesting and unbelievably advanced. But it might be too advanced for its time. Tolerances, metallurgy, even greases were not of high enough quality and oxidation would have been an issue. With high enough quality bearings they could have achieved a long and dependable operational life out of these. The fact that they could have made the gears and all the other parts is.... Mind boggling. But it is so complex, that there is way too many spots in the mechanism for it to go wrong, with way too few humans in the whole world capable of fixing it. We'll never know it, but it might have been enormously expensive, not very long lasting, hugely too complex for your average blacksmith to repair. So you have a rare technology, with minimal amount of professionals in the field and not a whole lot of reasons to bring up more pupils to learn the trade. Every investor who today is helping a tech start-up, is keeping our society finding new technologies and helping make them viable.

Oh and I forgot from my long post - with out a slightest doubt, there has been more of these. This isn't a prototype, or even rarity for its makers. Too well made, too complex. And making it would have been months and months of work, with expensive and highest of high tech tools of the day. You would need income, and that wouldn't be there without a backer (unlikely if you don't have anything to show your skills) or a business that keeps rolling and feeding you.

@@Ksoism I'm pretty sure the gears were cut by hand. Someone did it awhile back to see how hard it would be to hand cut gears using nothing but a file. Not that hard as it turns out. At least not for people skilled. You obviously won't get a new apprentice hand cutting gear teeth. Slow process, but not overly complicated.

Yeah thats weird

It's absolutely amazing, have seen it too.

When i went there the museum was closed due to construction. It was a big disapoinrment

I've seen it too it looked like old rusted junk to me

That’s because it IS old rusted junk now.

@@Menibor1 check out the 3D x-rays of the surviving 82 pieces. It's forced us to rethink the history of technology. It may not look that much now, but it's got it where it counts.

@Kelly Harbeson not if they didn't have the math for ellipses, no?

@Kelly Harbeson if I'm understanding your question right; they had little notches, though that might not be the right word. Anyhoo, this is my fave vid on the topic: kzfaq.info/get/bejne/rr2GdJmFyruviYk.html

@Kelly Harbeson Clickspring made it.

Copernicus credited him in his early work, but not in his more famous later work.

@@kellyharbeson18p😢

As a person with ADHD I thank you ❤

We have lace made in the 1400s that's so fine we cannot make it today- By our wonderful machines or by our most skilled craftsman. - I'm fascinated by how much we don't know and how it seems we lose information even faster.

Yes, like concrete. Invented, used widely, forgotten, rediscovered.

Well, the Greeks used giant mirrors to redirect sunlight and burn Roman ships from a far so that's close enough.

plenty of those

Even better, nobody had to declare their pronoun before class.

or you can skim the wikipedia article and be done with it...

It is, unfortunately, ever so slightly sensationalized in places and contains a handful of technical inaccuracies.

@@joejones9520 and miss the dramatic narration with the suspenseful pauses and the occasional erratic outbursts 😮? Heck na mate 😂

He's a good storyteller, but his "research" team mostly read easy to find stuff on the net, and they don't bother being diligent in their verification of facts. Watch it for the entertainment, but don't ever assume anything he says is a known fact. In other words, don't use this channel as evidence when debating someone. 🤷‍♂️

ANd regresses at certain point's.. I blame Greedy Dishonest religion..

More like building a modern gaming PC in 1920

unless its fake... much like the bust of Nefertiti

@@j.christie2594which one are you talking about?

I read something to that effect in either The Ascent of Man (Jacob Bronowski) or Cosmos (Carl Sagan), instancing the Ionian Civilisation. They went on to suggest that if civilisation had been able to develop in a straight line the first language spoken on the moon would have been Greek. (I am quoting from memory).

It continued along with Roman empire then last another 1000 yrs when Rome fell to the Germanic tribes as the Eastern Roman Empire where Emperor Constantine had created the New Rome in Constantinople under the Christian banner. One church before the Great Schizm.

Probably good for the planet. A few more centuries of less pollution, nuclear threats, etc...

😂 yeah and people will still think small dick is the better dick

@@dogwith4shoes that was not the Hellenic school of thought. You are evaluating things with todays mind

That's not necessarily true when you look up the knowledge ancient Indians had about astronomy. It's also important to note that most famous greek thinkers e.g. Ptolemy, Pythagoras etc. were educated in ancient Egypt so it's likely all of this derives from there.

@@dasmeshbhangu7452 the Egyptians were extremely ahead of their time… in 2500 bce. The reason that so many Greek mathematicians came from Egypt is because Egypt was weirdly enough the biggest Greek kingdom of its day. I’m not trying to downplay the contribution of ancient Egypt to astronomy, but the Greeks picked up a lot of their knowledge of astronomy from the Persians, and built upon it a ton after Alexander’s conquests. Those conquests also caused a spike of interaction with India. Thankfully, as both the Greeks and Indians loved to write stuff down, this exchange is pretty well documented. Most Indian contributions to Greek scholarship came in the form of metaphysics. There are some noticeable similarities between Indian and platonic philosophy, and Greek writers frequently talked about Indian religious figures (the philosophers of their day) in Athens. Most Greek contributions to India (at the time) came in the form of mathematics and astronomy. The direction of this exchange would shift in the medieval era, with the invention of zero by Indian mathematicians. By that point though, the centers of scholarship in the region had shifted from Alexandria and Athens to baghdad and Cairo.

Exactly. Humans have thought for hundreds of years (at least) that they have surpassed all prior civilizations in not only knowedge but also wisdom. As though a human 2,000 years ago didn't have the same capacity to learn and create when of course they had exactly the same capacity, just not the same knowledge or technological base.

Could THIS be evidence that aliens visited the ancient Greeks and provided them with the knowledge of the Antikythera Mechanism??? Ancient Astronaut Theorists say it’s a strong possibility!

Ancient alien advocates also believe humans were more advanced than the mainstream gives credit for.

It’s funny when you say something logical whilst attacking other beliefs all while actually knowing nothing

Than they we give them, yes we are quite intelligent aren't we?

Julius calendar at the time was already super advanced, by the time when Gregorian calendar came to be, they were only off by 3 days for all that thousands of years.

@@uncoveredtruth2088 I thought that it was about 2 weeks? Maybe 10 days?

I would imagine that since this was a finished product, it wasn't the only one. A prototype wouldn't have been finished with that level of detail so I imagine there is at least or was a prototype and drawings and sketches of how it was built and how to use it. We may never find others but I doubt this was a totally unique piece. In the time of the Western Roman collapse they cannibalized buildings and structures for any metals and useful stone so if any other copies were found, they would have been melted down by uneducated plebs.

@@uncoveredtruth2088 It was ALSO a pain in the ass, thanks to all the rules concerning leap years..... There's absolutely no intelligent reason to use such a calendar when it, and the one we use, won't be off by a single day until the year 2800.....

@@uncoveredtruth2088 And I wouldn't call it super advanced, as much as I'd call it super complicated. "Years that are evenly divisible by 4 are leap years. Exception: Years that are also evenly divisible by 100 and the remainder is neither 200 nor 600 when divided by 900 are not leap years." We could easily do something that stupid today, but why would we?

check out @clickspring, he's building one

Hope your paper got the respect it deserved. This is NOT an easy subject to cover. Max kudos to you for covering it.😊

The only Indy MacGuffin that is based on a real, known artifact. The others are either made up or legendary.

A month ago a video was posted featuring Tony Freeth, the man who leads the team responsible for most of recent discoveries and the recreation of a working model. The video is entitled "The Antikythera Mechanism Explained with Dr. Tony Freeth". Simply search that title here on YT to find it.

The ancients were indeed advanced, but I hate this misleading clickbait title. The device is a differential gear mechanism that serves to track and predict the position of stars (similar to or basically is an astrolabe) and may be considered an early form of an analogue computer. It is not some supercomputer.

@@Intranetusa Back in ancient Greece, this was a supercomputer.

@@Tattle-by-Tale actually, this was the portable computer, you might imagine the "super" computer versiones must have been on the creators laboratories/studios, they must have had hundreds of more advanced and bigger machines, not limited to the size you can carry in a ship.

@@Intranetusa so it's a sophisticated sextant?

@@cloudbloom Sorta, but instead of calculating/measuring distance like a sextant, it was used to calculate star positions. So I'd call it an astrolabe that uses a differential gear mechanism.

Damn straight

I'm just here hoping a comment plugging his channel makes it to the top. It's been a joy to watch him build it.

It's been a fantastic series so far.

Cool thanks

I was going to post the same message.

I hope he accomplishes that

Stay well clear of people talking about "true history". You'll find the greatest tinfoil hats, ignoramuses and conspiracy romanticists among those. People today are pretty amazed how NASA made all the calculations for their 60's space programs Mercury, Gemini and Apollo manually. Modern day NASA scientists are in awe how they managed to do such complex calculations in the 1960's. They are also remarkably accurate. The Enigma code-breakers at Bletchley Park during WWII also did incredible things and Alan Turing designed a computer able to crack the code using very crude 1940's technology. They laid the first trans-atlantic telegraph cable in 1865. That's hard to believe today for people who don't know history. My point is that there were *observable* incredible feats in "recent history" so these intricate pieces from antiquity isn't changing history in the least. We already know that Eratosthenes correctly calculated the circumference of the Earth around 250BC. Heron's engine worked like a simple steam engine. "True history" is for those believing the Inkas had contact with aliens, that there is a pyramid in Bosnia (a cruel hoax in bankrupt country) and that some race of reptiles are controlling the world.

It's not aliens.

It was either a collaborative effort to create, or it was made by a single individual that’s up there with the likes of Tesla & Einstein, or a visitor from another world left it behind, or a god damned time traveler delivered it

Or they took it from another civilization that existed 1000’s of years prior and was at the forefront of science and technology.

?

What mystery though lol? Seems pretty straightforward.

There are almost certainly many unknown species of animals sitting in museum fossil collections, either because they've been miscategorised or just never closely examined due to the sheer volume of specimens.

An Archimedes sphere is a central McGuffin for the Heroes of Olympus book series-Riordan writes that Archimedes was a “son of Hephaestus” who used celestial bronze to make advanced gadgets and tools.

I was about to say the same thing!!!

Only hinted at it around 13:17 Kind of disingenuous not to have a link to his channel or playlist in the description

Should i be concerned what happened the year of my birth? So close to my birth month? In my state of birth?

@@aceundead4750 for sure. That's why Simon should make a video about it

Probably also took some time the second (or third or?) time around..👍

The observations dated back to around 600 BC in Babylonia. That was a critical part of the device. The mathematics aren’t terribly complex, just simple calculations using different gear ratios, but the design as a whole is very ingenious.

@@LloydWaldo I am a retired tool maker and have machined and assembled some very complex machines and devices. I am quite certain there is a lot more to that device than simple gear ratios. To date I am not aware that any archeologists having found any tool room lathes, or milling machines, from the time period that the device was assembled. To have formed the components of that device with the accuracy needed to get your various simple gear ratios to perform any useful function would be a challenge today nevermind, how many thousands of years ago. The fact that, that device exists is astonishing.

​@@LloydWaldo 😅

It could also be a KZfaq fail. It happens now and then.

Ikr

In truth it is essentially neither. Both of those theories of astronomical motions strive to match what t he naked eyeball sees when looking to the heavens. And so does the mechanism. It doesn't emulate either the geocentirc or the heliocentric theories in doing that. Neither does it fight circles vs. ellipses. It simply attempts to show where the moon, sun and planets are in the sky as viewed from Earth. All those theoretical controversies came later, after the mechanism was built.

Take a look at Clickspring's channel. He's building the reproduction (in collab. with others) and also making and using the tools they would have used. Fascinating vids.

Historians knew about the existence of such a machines since I was mentioned by at least 6 surviving authors (Cicero, Pappus, Claudian, Proclus, etc.) And all of them mention Archimedes as the guy that probably invented it.

@@juansebastianpulidovelasco2195Indiana jones agrees

I was going to nitpick that a little also. The gearing is digital but for some of the complex motions cams are used so it would be more correct to call the Antikythera Mechanism a hybrid analog/digital computer. Nitpicking aside I find this a fascinating topic not only the technology that went into building it but also the scientific effort to understand what it was and hot it works.

The fire control computers on the Iowa class battleships are interesting. They are mechanical computers built in the 1940's. When the ships were brought back into action it was decided not to replace them because they were so accurate. Taking into account things like ship and target speeds and the rotation of the planet, they worked well so there was no reason to replace them with modern electronic fire control computers.

@@JoshuaTootell Interesting, I knew WWII US submarines had a mechanical Torpedo Data Computer (TDC) but I had not realized surface ships also had mechanical fire control computers.

The language used in the texts that are embossed on the mechanism is the ancient Greek of the period 250 BC - 100 AD. We would know a lot more if all the writings that were burned or destroyed by Christians who hated any progress that wasn't made by...God.

Me

technically history is just how historians (government) interpret the past and records.

@@zee-fr5kw Except this is the internet age. You can look up copies of actual historical documents/things. No one is interpreting if you're looking at it yourself. Well, except you of course. And as far as history goes, a regular person is probably the worst at interpreting. We have no time to do as much research as is needed. So what you come up with, is far more likely to be wrong.....

@@lordgarion514 Mega Man would absorb the principle strength of his adversaries, then reconcile those principalities by submitting them to his vision of the highest good for thousands of years leading to a revelation about what the highest good looks like. Adversaries = worldviews. Principalities = Vices/idols. Revaluation = Jesus Christ is Lord. His Story is thousands of years in the making resulting in many books, consolidate into the bible. kzfaq.info/get/bejne/fceZqad71Z7Kmn0.html

Well no. Our knowledge matche'd this in the 1600s. He said that several times

Knowledge and intelligence are very different things in my experience. I believe the people of the ancient times were actually more intelligent than the average human today. Machines do everything for us today. Back then, they had to build their machines.