Observe how this Binary Marble Adding Machine by Matthias Wandel of Woodgears.ca works: “When the rocker is set to the left, that represents a zero. When it’s rocked to the right, it’s set to one.”
Watch this for the math, watch this for the math with a paper and pen, or just watch how the marbles fall through the rockers. The video shares fascinating mechanisms no matter what your age or math level is.
Related reading at Math is Fun: Binary Number System.
Watch these related math videos next:
• The Universal Tea Machine, a huge mechanical ‘adding computer’
• Turing Tumble, a DIY mechanical computer powered by marbles
• How exactly does binary code work?
via The Math Kid.
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