Back again for a much more relaxed help desk, as most of the undergrads have gone home! So any questions about physics of any kind, or science in general, ask away and I'll do my best to answer 'em!

P.S. Last time I think I may have missed a question or two. I'm very sorry if I missed yours. Please feel free to re-ask anything I missed. I have way more time than last week, so I'll have time to answer!