Twitter: @nmHz
The username comes from the tradition of noms de plume in the National Puzzlers' League -- 530nm is the wavelength of green light; 330Hz is the frequency of the E above middle C; my last name is Greene.
Twitter: @nmHz
The username comes from the tradition of noms de plume in the National Puzzlers' League -- 530nm is the wavelength of green light; 330Hz is the frequency of the E above middle C; my last name is Greene.