From the Rube Goldberg Exercise Bike that dispenses cookies, to Ro-Bow, a mechanical violin player , the projects all have hundreds of parts, many of which Goldstein buys and others that he has saved over the years. Lorem ipsum. Close Alert. In the News. Related News. Diagnosing cancer with a barcode-inspired test. One giant leap for the mini cheetah. He currently is rigging a 6-foot long model of the clipper ship Cutty Sark, which he has built from scratch.
Computer control was provided by Randall Pursley. RO-BOW is a machine that plays a standard full-size violin. The horizontally orientated violin is rotated underneath a reciprocating violin bow while four mechanical fingers are moved to make contact, as appropriate, with the highest bowed string. Vibrato, pizzicato, legato, note-loudness modulation, and some other bowing effects are provided. When music is played on an electronic keyboard, a MIDI file is generated which is edited, and then used as the input to the violin computer.
This computer generates numbers to control the electronics, powering the various motors to perform the prescribed motions which enable the violin to play the same notes as were originally played on the keyboard.
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