Letters of Sydney Smith: I, 77, 78 (Claredon press, 1953)

Vortex-interface interactions and generation of glitches in pulsars

“…is a correction arising due to the finite range of the interaction, where β = k 2 T F /4k 2 F e and kT F is the Thomas-Fermi screening length of protons (Smith & Hojgaard Jensen 1989; for the screening effects see Baym et al 1969). The rate for the second process, electron-flux scattering, in the volume V< is…”

From rubies to rosettes

“…The phenomenon of red snow is said to date back to observations by Aristotle (350 B.C.E./1910). In “The history of animals” he writes “… for instance, worms are found in long‐lying snow; and snow of this description gets reddish in colour, and the grub that is engendered in it is red …” (Book V, Part 19, 552b8–10).…”