Throughout history, it has been difficult, even impossible, to promote the acceptance of new discoveries.  Yet during the last two centuries, there has been a vertable explosion of new curesl, theories, techniques, and inventions that have revolutionized aviation, space travel, communications, medicine, and warfare.  Most of them, of course, were deemed “impossible.”  A fascinating collection of stories about the pioneers who created or thought up the “impossible” cures, theories, and inventions “they” said couldn’t work.