Marble machines are the kind of useless mechanisms that everybody loves. Their sole purpose is to route marbles through different paths for your viewing pleasure. They can be extremely complicated ...

If you like marble machines, or if you simply like alliteration, prepare to be amazed. [Denha] apparently has had a lot of time to spare over the years, as the marble machine collection he’s amassed ...

NPR's Rachel Martin spoke with Martin Molin, creator of the marble machine, on Weekend Edition Sunday. You can hear their conversation at the audio link. The "Marble Machine" is a musical instrument ...