A solid three stars. I do like the emphasis on science here, and there are some passages where the non-science and the science poems reflect off each other, forming small series within the wider text that are really quite special. I have less interest, however, in some of the more "technical" poems, by which I mean the erasure poems which do tricksy things with form. I mean, I can appreciate that these hold a great deal of interest for some readers but they're not for me, especially at the length that some of them are. I prefer Rau's shorter poems, I think, the ones that are less flashy on the surface of them. High point for me was "Kepler's Laws", which was restrained and unfussy and had a simple sort of shining clarity which sometimes got a bit lost in the rest of the collection.