Watching Dr. Chua’s lectures. I feel like I’m catching up with lost time. Here’s a mini-catapult that can launch tiny physical objects. It’s a memrister, Chua’s theoretical non-linear circuit that took 37 years for someone to built. [was first built in 2008]. It’s a big deal because it’s tiny, non-volatile memory, which will extend Moore’s Law for years to come. That it can *also* be a mini medieval catapult is pretty cool too. [a spring is a memory device and in this case has a hysteresis loop and hence this qualifies according to Chua, who invented the theory and therefore has the right to say what is and isn’t a memrister.