Imaaaginaation ✨🌈✨: why we use complex numbers

I saw a question on Reddit the other day about imaginary numbers. We know it's the square root of -1, but how the heck is -1 particularly useful to engineers? Why does it show up everywhere? You look at the complex plane, s-plane, a+jb, and it's...a number on 2 axes. Isn't that simple a 2D … Continue reading Imaaaginaation ✨🌈✨: why we use complex numbers →

Electrical Engineer: Day In The Life

Hi everyone! Today is a post for people who are either thinking of going into electrical engineering or are studying electrical engineering (I'm just gonna call it EE) and are wondering what a typical day is like. People ask this question on forums all the time, so this will also be something to just copy-paste … Continue reading Electrical Engineer: Day In The Life →

Gain Correction of DC Blocker for Lock-In Amplifier

This is a write-up of a really fun problem I solved at at Lake Shore Cryotronics, originally written as a presentation I did for my job at Bruker. I love circuits as my 9-5 job, but I do get a high from doing silly math or improving some multi-rate DSP thing here and there. This … Continue reading Gain Correction of DC Blocker for Lock-In Amplifier →

“So like…what even IS a resistor?”

A friend of mine who had taken a circuits class asked me this and at first I was confused. He took a whole circuits class, half of it was spent on resistors. And then I realized it's honestly a really good question. They're presented as a scribble on a chalkboard with no context, you do … Continue reading “So like…what even IS a resistor?” →