Astronomy double period - Macrocosm, microcosm

Why does E=mc²?
- Title of a pop-sci book by Profs. Brian Cox and Jeff Forshaw

Astronomy double period! Whoever set up the timetables this term is sure to get some threatening looks from the students (once they find out who it was, of course). And it's fairly early in the morning, too! You might have had time for a short breakfast only before hurrying up seven floors to the Tower.

Professor Antares isn't around yet, though. So you're still on time, and you have a minute or so to catch your breath. The large desk at the front of the class is the usual mess of encyclopaedias and journals.

OOC: Sometimes, real-life (or meatspace, if you prefer :>) issues intrude upon SnitchSeeker time. I'm sure you noticed I couldn't finish the first lesson, that I didn't give any homework... and that I haven't been around much in general, really. I do sincerely apologise for that, but it couldn't be helped. I hope it doesn't sound like I'm trying to make excuses - I'm just letting you know. For honesty's sake, you should probably mention it in my evaluation at the end of term too.

I'll add the points for that class (plus a bonus for everyone who participated) before term is over, of course. And I hope I have the time now to RP for the last few weeks. Professor Antares is available in his office again now if there's anything that needs to be discussed. :>

With that out of the way: Class will begin once I'm back from university, in about six hours. Have a seat! You're allowed to chat if you feel like it too.

[edit]
If you're just now joining in, the second lesson of this double period (and the third lesson overall) begins here.