*Apodization* http://arxiv.org/abs/1206.4088 This is a paper about mirror design... which holds my interest (somewhat). It is about specialized coronographs for planet hunting, which holds my interest a lot more. But that it is doing it for a phase-induced amplitude apodization system caught my eye. I don't recall previously hearing the word *apodization* and I wondered whether the guys from Astronomy Picture Of the Day (APOD) knew about it when they named their site. I skimmed the paper, but still don't really know what apodize means.
This is from the Fun Papers thread. StupendousMan gave me an answer.
Forming opinions as we speak