Antikythera Mechanism (Eclipse Predictor) made with LEGO
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Uploaded by aecarol on Jul 8, 2010
This is a working hand-cranked eclipse predictor modeled after the ancient Greek Antikythera Mechanism. The original machine was built about 100 B.C.E. and made of bronze gears.
This machine is made using LEGO parts, the labels were generated using Mathematica. It contains over 100 gears and has seven differential gear-boxes.
The left dial indicates the Saros cycle and the right dial shows the position of the sun and moon against a calendar.
It is hand-cranked and this video shows it finding the lunar eclipse of the very early morning of June 26, 2010. It calculated June 25th which is within one day of the actual eclipse.
See other interesting mechanical devices I've made at:
http://acarol.woz.org
Wiki article on the original ancient Greek machine:
http://en.wikipedia.org/wiki/Antikythera_mechanism
- 31 likes, 2 dislikes
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Uploader Comments (aecarol)
Top Comments
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You can Defeat the FireNation with this new Invention!
1 year ago 3
All Comments (16)
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This is awesome. There's actually one of these built the same way but with only four gear boxes by an apple software engineer. That one was sponsored though. Anyway great job on doing it yourself I actually like it having more gears, makes it seem more complicated.
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Hi!
What are the gear ratios for each "block"?
One is 19/5th right.. what about the other ones?
Cheers! :)
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you should sell (or give away) instructions on how to build those things
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Beeindruckende Arbeit! Ich habe darüber berichtet:
funnyfoto.de/ort/962
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Hey me too! And I know other people that would like to.
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so when is the next lunar or solar eclipse?
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this thing is crazy. Awesome job. Do you think its possible that lego makes this into a kit, with instructions. Id really love to build one myself.
1 year ago 3
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Does not look the same as the antikythera Mechanism that they found. It does not have any large gears for a start. What gives
KeithSloanM3VBN 1 year ago
@KeithSloanM3VBN The original used direct gears with specific tooth counts (19, 47, 127, 223, etc) to obtain the gear ratios required for the math. LEGO does not make those size gears so I have to obtain the same gear ratios using differentials.
aecarol 1 year ago 7