BusinessWeek: Every third Wednesday, Michael Box gets up at 3:30 in the morning to catch a flight out of Perth. Isolated in the south-west of Australia, Perth (pop. 1.6 million) is 1,700 miles from the next large city, Adelaide, which isn’t even that big. Box and about a dozen co-workers fly two hours north to a yet more remote section of Australia, the Pilbara, a 193,000-square-mile hump of territory arcing into the Indian Ocean. They will land on this patch of iron-rich red earth and spend the next two …