Let's Fight Poaching With Robotic Rhinos

Since 2010, poachers in South Africa have killed more than 5,000 rhinos. In Asia, two rhino species--Javan and Sumatran--are critically endangered. According to the World Wildlife Foundation, poachers eager to reap their horns use helicopters and veterinary drugs to track and attack the animals. A mechanical engineer and a member of the family whose aerospace and transportation company builds trains, planes, and more, Bombardier's at his best when he ignores pesky things like budgets, timelines, and contemporary physics. Since 2013, he's run a blog cataloging more than 200 concepts, each a fantastic, farfetched new way for people to travel through land, air, water, and space.