Hey guys, so I'm just some teenager who is in first year Mathematics and Physics Bsc at University of Strathclyde in Glasgow UK. I am doing really well since it's first year it is so easy.... I had a dream yesterday, where I designed some arbitrary piece of tech, and then after that I got the parts necessary and built it. It was a tiny gadget to measure shock waves or something. Either way I was interested in that, and wanted to see if I would be good at it. I don't really know what I want to do later, so I wanted to try these things out. Now, my problem: I have no idea how to design anything, nor do I remotely know how tech works, nor do I know anything about circuits other than basic high school stuff. My question: What specific classes/courses do I need to crash/take in order to get a better understanding of designing/building complex technological systems? I am taking Physics and Mathematics currently.