< Quicksilver Day, Leaden Night
Piet Hein was an interesting guy:
https://en.m.wikipedia.org/wiki/Piet_Hein_(scientist)
And yes, I'm a Heinlein fan too...
Ah... I definitely recognize his photo at that URL. Must have investigated him in the path. I mean past. :-)
Wow, forgot about Heinlein, actually. I was initially thinking 'Heineken', but then I wrote 'surname', and although it's probably a surname, most would likely thinking of it more a brand name than a surname.