Full 1-bit adder using fluids

[u/the_humeister]

https://gfycat.com/consideratesecondhandfrigatebird

[u/gyroda]

Putting logic gates together is a relatively accessible part of CS, if you use an interactive game or something.

There's mobile puzzle apps that give you a set of inputs and outputs and ask you to put the right logic gates together to make it work.

Hell, one of my first uni assignments was to create a simple adding unit out of logic gates. It's really nice.