It’s no surprise then that he’s interested in the Antikythera Mechanism—a small ... all the modern theories of the device’s gear train. The entire system is made out of 6mm birch plywood ...

This artefact was among wreckage retrieved from a shipwreck off the coast of the Greek island Antikythera in 1901. On 17 May 1902 it was identified as containing a gear by archaeologist Valerios Stais ...

Mexican scientists and teachers from the University of Sonora in northwestern Mexico have successfully recreated the Antikythera mechanism ... while the largest gears are one or two centimeters.