Why are you at greater risk to suffer a concussion after the first one? |
- Why are you at greater risk to suffer a concussion after the first one?
- How do Parallel SEM Avoid Interference Between Parallel Electron Beams?
- How does Planck equation solves the ultraviolet catastrophe problem?
| Why are you at greater risk to suffer a concussion after the first one? Posted: 22 Feb 2022 05:22 PM PST |
| How do Parallel SEM Avoid Interference Between Parallel Electron Beams? Posted: 22 Feb 2022 05:37 PM PST Today I learned that companies like Zeiss have electron microscopes that have parallel electron beams, to increase scanning rate. However, given that electrons are negatively charged, how/why do the parallel electrons path's not become distorted? Do computers do the math to correct for distortion caused by electrostatic repulsion? [link] [comments] |
| How does Planck equation solves the ultraviolet catastrophe problem? Posted: 22 Feb 2022 01:29 PM PST So, here's what I know about subject: -According to classical approach, radiation of a wave should increase as long as wavelength keeps decreasing. So at some point, it has to go to infinity, but obviously it's not what happens in real life. -Planck, mostly out of desperation, came up with the idea that energy is quantised and also modelled the energy of a wave as E = h • f. When I look at the formula and the idea of quantisation superficially, I can't see why Planck's model leads us to this What prevents energy to increase after some point? [link] [comments] |
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