The Jetpack is finally here, but don’t expect to fly through the clouds just yet

For decades, science fiction has teased us with notions of strapping on a jetpack and soaring through the clouds, (or, in the case of James Bond, eluding bad guys). Numerous inventors have tried over the years, with middling success, to create jetpacks for all of us. But pretty much every model created has suffered from one particular flaw: they can only fly for about 30 seconds.