Ornithopters are one of the more interesting pieces of technology in the Dune universe (that and Chairdogs). They do really exist, at least as a concept. Their practical use had never been achieved, not for human flight.
Everyone knows Dune (you do, don’t you? If not, why are you here?), and if you’ve even given this blog
Hey, if you haven’t already read Frank Herbert’s Dune, then: a) Shame on you. And b) I’m going to spoil
David Gerrold*, noted science fiction writer, had an interesting article on his website, 10 Novels that have stayed with me.