Most of us can do simple math in our heads, but some people just can’t seem to add two numbers between 0 and 3 without using paper, like [Aliaksei Zholner] does with his fluidic adder circuit built ...

There are many different ways in which we could implement our 4-Bit Chewy Computer — here are a few possibilities for you to peruse and ponder In my previous column on this topic — “Building a 4-Bit ...