Handmade Wooden Binary Marble Adding Machine 6-Bit Kiwanis Toy Longmont CO
USD 19.99 USD
Specifications
| Type | Marbles |
| Country Of Origin | United States |
This is a one-of-a-kind object — not a kit, not a production piece. Six-column binary adder, columns labeled 1, 2, 4, 8, 16, 32. Wandel published his plans freely, and the design spread — built in wood, laser-cut plywood, Lego, and 3D-printed plastic by makers and educators around the world.
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