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Awlsew

Antikythera mechanism

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Awlsew
Posted (edited)

Antikythera+Mechanism.jpg

image004.jpg

It is a complex clockwork mechanism composed of at least 30 meshing bronze gears. A team led by Mike Edmunds and Tony Freeth at Cardiff University used modern computer x-ray tomography and high resolution surface scanning to image inside fragments of the crust-encased mechanism and read the faintest inscriptions that once covered the outer casing of the machine.

Detailed imaging of the mechanism suggests that it had 37 gear wheels enabling it to follow the movements of the Moon and the Sun through the zodiac, to predict eclipses and even to model the irregular orbit of the Moon, where the Moon's velocity is higher in its perigee than in its apogee. This motion was studied in the 2nd century BC by astronomer Hipparchus of Rhodes, and it is speculated that he may have been consulted in the machine's construction

Does this ancient machine demonstrate what we know as Cassini Apparent?

512px-Cassini_apparent.jpg

https://en.wikipedia.org/wiki/Antikythera_mechanism

Edited by Still Waters
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jaylemurph

Damn that EMP that destroyed the Search function!

—Jaylemurph  

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Awlsew
6 minutes ago, jaylemurph said:

Damn that EMP that destroyed the Search function!

—Jaylemurph  

:D lol 

Seriously though, the Antikythera Mechanism is quite the mystery. Who could have had the knowledge and skill for such a piece of technology 2200 years ago?

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Awlsew
Posted (edited)
Quote

The Antikythera mechanism is generally referred to as the first known analogue computer.[32] The quality and complexity of the mechanism's manufacture suggests that it must have had undiscovered predecessors made during the Hellenistic period.[33] Its construction relied on theories of astronomy and mathematics developed by Greek astronomers during the second century BC, and it is estimated to have been built in the late second century BC[5] or the early first century BC.[34]

https://en.wikipedia.org/wiki/Antikythera_mechanism

Really??

Edited by Still Waters
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Manwon Lender
13 minutes ago, Awlsew said:

Antikythera+Mechanism.jpg

image004.jpg

It is a complex clockwork mechanism composed of at least 30 meshing bronze gears. A team led by Mike Edmunds and Tony Freeth at Cardiff University used modern computer x-ray tomography and high resolution surface scanning to image inside fragments of the crust-encased mechanism and read the faintest inscriptions that once covered the outer casing of the machine.

Detailed imaging of the mechanism suggests that it had 37 gear wheels enabling it to follow the movements of the Moon and the Sun through the zodiac, to predict eclipses and even to model the irregular orbit of the Moon, where the Moon's velocity is higher in its perigee than in its apogee. This motion was studied in the 2nd century BC by astronomer Hipparchus of Rhodes, and it is speculated that he may have been consulted in the machine's construction

Does this ancient machine demonstrate what we know as Cassini Apparent?

512px-Cassini_apparent.jpg

 

Unfortunately in its present condition there is more conjecture than concerning the devise. Maybe some day they will find another one in better condition.

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Awlsew
Just now, Manwon Lender said:

Unfortunately in its present condition there is more conjecture than concerning the devise. Maybe some day they will find another one in better condition.

True. X-rays do show a complex machine though. Bronze gears? Seems quite advanced for circa 100BC. 

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Awlsew

Yes I did search this site for any previous threads on the mechanism. None came up.

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Manwon Lender
Posted (edited)
4 minutes ago, Awlsew said:

True. X-rays do show a complex machine though. Bronze gears? Seems quite advanced for circa 100BC. 

I don't disagree at all, however it's far to damaged to be certain of its intended use. It could have been a navigation devise for all we know.

Edited by Manwon Lender

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Imaginarynumber1
4 minutes ago, Manwon Lender said:

I don't disagree at all, however it far to damaged to be certain of its intended use.

Nah. It's pretty well studied and understood. It tracks astronomical positions, eclipses, and the like. Not very accurate, though, it seems.

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Awlsew
4 minutes ago, Manwon Lender said:

I don't disagree at all, however it's far to damaged to be certain of its intended use. It could have been a navigation devise for all we know.

This gentlemen, Michael Wright, has a very plausible theory on the purpose of the mechanism. 

Seems quite plausible what he contends.

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Awlsew
3 minutes ago, Imaginarynumber1 said:

Nah. It's pretty well studied and understood. It tracks astronomical positions, eclipses, and the like. Not very accurate, though, it seems.

It demonstrates the apparent motion of the moon, Sun, and five planets. 

 

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Manwon Lender
5 minutes ago, Imaginarynumber1 said:

Nah. It's pretty well studied and understood. It tracks astronomical positions, eclipses, and the like. Not very accurate, though, it seems.

Certainly not very accurate now.:yes:

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Awlsew
Just now, Manwon Lender said:

Certainly not very accurate now.:yes:

True, but doesn't modern imaging technology allow one to produce an exact working model of it?

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Awlsew
37 minutes ago, jaylemurph said:

Damn that EMP that destroyed the Search function!

—Jaylemurph  

Better an EMP than an IMP ;)

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Manwon Lender
6 minutes ago, Awlsew said:

True, but doesn't modern imaging technology allow one to produce an exact working model of it?

Well I suppose it possible, however, without it being complete it may also be very difficult. 

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Awlsew
1 minute ago, Manwon Lender said:

Well I suppose it possible, however, without it being complete it may also be very difficult. 

Michael Wright seems to have done a pretty good job. He has spent decades studying the mechanism. True he may not have the details of the entire machine, but what he has found seems very plausible if not true.

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Dumbledore the Awesome

So what is a kythera exactly, and how does an antikythera mechanism counteract it? 

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Awlsew
32 minutes ago, Dumbledore the Awesome said:

So what is a kythera exactly, and how does an antikythera mechanism counteract it? 

Kythera is an island opposite of Antikythera.

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Stiff
3 hours ago, Awlsew said:

Yes I did search this site for any previous threads on the mechanism. None came up.

The search function isn't working very well. Searching direct from Lord Google brings up:

https://www.google.com/search?q=site%3Aunexplained-mysteries.com+Antikythera&oq=site%3Aunexplained-mysteries.com+Antikythera&aqs=chrome..69i57j69i58.3505j0j8&sourceid=chrome&ie=UTF-8

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Golden Duck
5 hours ago, Awlsew said:

:D lol 

Seriously though, the Antikythera Mechanism is quite the mystery. Who could have had the knowledge and skill for such a piece of technology 2200 years ago?

Maybe apprentices learning from those that made the Olbia Mechanism. 

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Hanslune
5 hours ago, Awlsew said:

Really??

Really.

https://en.wikipedia.org/wiki/Antikythera_mechanism#Similar_devices_in_ancient_literature

 

Quote

Cicero's De re publica, a 1st-century BC philosophical dialogue, mentions two machines that some modern authors consider as some kind of planetarium or orrery, predicting the movements of the Sun, the Moon, and the five planets known at that time. They were both built by Archimedes and brought to Rome by the Roman general Marcus Claudius Marcellus after the death of Archimedes at the siege of Syracuse in 212 BC. Marcellus had great respect for Archimedes and one of these machines was the only item he kept from the siege (the second was placed in the Temple of Virtue). The device was kept as a family heirloom, and Cicero has Philus (one of the participants in a conversation that Cicero imagined had taken place in a villa belonging to Scipio Aemilianus in the year 129 BC) saying that Gaius Sulpicius Gallus (consul with Marcellus's nephew in 166 BC, and credited by Pliny the Elder as the first Roman to have written a book explaining solar and lunar eclipses) gave both a "learned explanation" and a working demonstration of the device.

 

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ThereWeAreThen

Yaya someone other than me mentioned wales or a place in wales.:wub:

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Windowpane
stereologist
14 hours ago, Awlsew said:

True, but doesn't modern imaging technology allow one to produce an exact working model of it?

Modern imaging technology can only produce an image showing what is extant.

Don't assume important components are all there.

Don't assume that the entire device has been found.

Don't assume that what has been found is in the form it had when it was used.

Don't assume that the device was complete or working at the time it went into the ocean.

 

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Essan

The Antikythera device always reminds me of the crystal radio.  Something with just 60 years ago every schoolboy could build but which today would be a complete mystery to most kids who have no need for such a thing but also have a clue how a mobile phone works .....

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