New Zealand is at the end of the earth, but its people inhabit a dramatic landscape begging for adventure. And it turns out that many New Zealanders like their adventure to be of the extreme variety. Popular Science details the background of their many wildly dangerous innovations, including how bungee jumping grew out of a Vanuatu ritual using jungle vines. Jet boats were invented by a farmer who just wanted to get upriver. It’s well worth the read.