Virtual Reconstruction of the Antikythera Mechanism
Very cool. Fascinating that it can do retrograde motion of the planets.
So much effort, for millennia, was put into understanding why planets sometimes move in retrograde, when the actual reason was very simple. That kind of thing makes me wonder whether the Standard Model, which (to the this non-physicist) seems like a Rube Goldberg mechanism tweaked with un-found particles like the Higgs, axions, WIMPS, and so forth, is just missing some major conceptual element that would vastly simply everything.