[Kedar Nimbalkar] thought so, and built a soda fountain that you can install right inside a fridge. The system is ... gun barrel — and that was from a single exposure! Overall it’s a ...

The first thing [Paul] did was make a soda fridge refill sensor from a scale. As the fridge got emptier, it got lighter. The scale senses that and can decide it’s time for a refill. The only ...