Physics Crossword

2. / highly penetrative radiation of cosmic origin; a common astronomical image artifact
4. / rarely interact, trillions pass through your body each second
5. / quantum particle in a _; sits or slides on a ramp in intro physics problems
8. / type of integral extending integration to a wider class of functions; L^p
9. / Maxwell famously modified his equation; unit of charge flow
14. / famous equations governing fluid flow; one of the seven Millennium problems
15. / the strong interaction acts on
16. / remnant of most dead stars, center of a planetary nebula
17. / hard to spell equation important to quantum mechanics
19. / particle of integer spin
20. / a key spectral line in astronomy emitted by hydrogen
21. / effect central to the function of CCDs, solar panels

1. / as far as we know, there are no magnetic _
3. / amount of air along the observer’s line of sight; related to zenith angle
6. / in astronomy, any element that isn’t hydrogen or helium
7. / electrical resistance vanishes below a critical temperature
10. / proportion of incident radiation reflected by a surface
11. / tendency of a conductor to oppose a change in electric current
12. / I prefer strawberry; in physics, refers to the species of an elementary particle: 6 for quarks and 6 for leptons
13. / prefix for certain vectors, values, functions, and spaces
16. / weakly interacting, particles hypothesized to be an explanation for dark matter
18. / Doppler shift towards longer wavelengths