Hello all; I'm in an odd position. I graduated with a degree in molecular biology 2 years ago and now work in a quality control lab for a pharmaceutical manufacturer. My job involves doing things like running gene-amplification reactions for recombinant microorganisms used in drug-production, electrophoretic and spectral analysis of protein and protein assay reaction products, etc. However, I do not understand a lot of core physics concepts behind many of my work functions. For example; we run mass spectrometry at my job, and though I can operate a MS and read the spectra well, I would like to better understand the mechanisms as to how molecules ionize, how they move through an electromagnetic field, how the detector works etc. We also do IR, FTIR and UV/Vis spectral analysis, but I would like to better understand how molecules/atoms/subatomic particles and so on respond to light of various wavelengths, associated vibrational changes, mathematical functions and such. We also use Proton NMR and Electron Spin Resonance Spectroscopy, but I have a very poor grasp of what particle Spin actually is or how it works. So far, my range of understandin is stuck at the "molecular level." THINK what I want to learn is light and particle physics, but whenever I attempt to learn these topics, I always encounter tons of precedent topics that require lots of time and effort to learn, much of which I'm not even sure if it's related to what I want to learn or if it's worth the effort. If anyone can recommend any resources or strategies for studying physics for molecular biology, biochemistry, pharmaceutical or biomedical applications, it would be greatly appreciated.