This LEGO Air Conditioner is Cooler Than Yours

What’s the coolest thing a person can build with LEGO? Well it’s gotta be an air conditioner, right? Technically, [Manoj Nathwani] built a LEGO-fied swamp cooler, but it’s been too hot in London to argue the difference. This thoroughly modular design uses an Arduino Uno and a relay module to...