#14 on map
Everyone learns how to add in base 10. But how many people understand how to express a number in base 2? The Binary Adder is a large mechanical adder powered by billiard balls with two inputs. Participants will use a hand crank to change the input number, then pull an extremely long execute addition lever (like a slot machine) that would load the billiard balls into the binary registers - expressing the sum in base 2. The balls will mechanically recognize registers that are already full and be launched into a difference direction, hitting a noisemaker and visually displaying the concept of “carrying” to the next column.