Semi-retired after 42 + years of teaching experience. . . . I am a New Zealand based member of the UK Institute of Physics hence the MInstP . . . Most of the resources posted here are extracts from our bespoke physics course notes produced for Baradene College of the Sacred Heart in Auckland New Zealand. . . . All content is "a work in progress" so subject to updates etc. . . feedback/enquiries/suggestions/requests to info@simplyphysics.org