Carrying a red hold-all, 22-year-old Neil Roberts strode through the darkness towards the doors of Wairere House in Wanganui—home of the ‘Wanganui Computer’. It was some 25 minutes past midnight on ...

One spring, Annette Lees was given a bat monitor for her birthday—a black and olive plastic gadget with knobs for adjusting volume and frequency and a speaker to announce when a bat was nearby. It is ...