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Sort marbles beads into matching colored places.
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A galton board also known as a bean machine quincunx or galton box was developed by sir francis galton in the 1800 to demonstrate the central limit theore.
They can be a random color specific color and any size.
You can certain sizes specific colors if you re building a sorter for example.
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In january 2018 the anonymous facebook page shared a video that seemingly showed a simple machine automatically.
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Pusher pushes the marble down to the sorting arm after the marbles are read by the sensor two feeding rotor vex components act as the semi permeable membrane entrance to the sensor motor turns a gear that is meshed with two other gears that are attached to the same axle as the feeding rotors.
A video shows a device automatically sorting hundreds of small balls by color.