Sugar lumps

My flatmates were trying to save as much of some very solid sugar as possible -
Louise: "It's quite cheap, we can always buy more."
Nicola: "Sugar is a luxury!"

Lectures, waves and fields work, our confusing version of Irish Snap, being subjected to far too many "that's what she said" jokes, chat in the flat, baked potato, and finishing off the waves hand-in has filled my day. I think I have spent at least 4 hours on question 6c) in total, let alone the rest of the questions, but it's finished now!

God is the same today, yesterday, and forever.