try and write a companion piece to mathematical formulation of quantum mechanics that explains it in "layman's terms" (ie, no scary bra-ket notation, etc. Possibly lots of pretty pictures of Fourier decompositions will be necessary ...)
... density is 380.6/km² (967.1/mi²). There are 595 housing units at an average density of 1,640.9/km² (4,169.6/mi²). The racial makeup of the village ...