Sensei Posted November 30, 2022 Share Posted November 30, 2022 1 hour ago, swansont said: Why don’t atoms absorb part of the energy of an EM wave? e.g. a 2 eV emission hitting an atom that allows a 1 eV excitation. They do, sometime. i.e. Compton scattering, or the photoelectric effect. 19 minutes ago, Lorentz Jr said: I'm assuming you mean the energy of N photons, where hf < 1eV and Nhf = 2eV? No. He meant that one photon with E=2eV strikes an atom that has electrons that can be excited by E=1eV. 23 minutes ago, Lorentz Jr said: I just don't like a lot of things in modern physics, and I'm trying to make sense of them as well as I can. ..you should start from buying polarization filters, diffraction grating and double-slit setups, discharge tubes of various gases, prism (to split spectral and absorption lines) on eBay/Amazon/Ali-express or so.. https://www.google.com/search?q=how+to+build+cloud+chamber "how to build cloud chamber" it costs less than 20 USD.. Instead of being a theoretical home-made scientist, become an experimental home-made scientist. Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now