IRVING, Texas — Like many crazy ideas, it all started with a drink. “Margaritas are definitely what inspired us on this one,” said David May. Earlier this year, May and his friends were out to dinner ...

Maybe it’s time to say goodbye to the jet pack. For a long while now, when someone mentioned “personal flying machines,” the image that came to mind was of people wearing devices powered by small, but ...

Flying animals and flying machines : birds of a feather? -- Hey buddy, need a lift? -- Power : the primary push -- To turn or not to turn -- A tail of two tails -- Flight instruments -- Dispensing ...