Artist, inventor, publisher, writer and sometime philosopher, Rufus Porter was a veritable poor man's Leonardo da Vinci. He founded ( and immediately sold) the magazine Scientific American, left a vigorous trail of mural art across the New England states, and built what was probably the first working model of a power-driven airship. His plans for this 'aerial locomotive' or 'Aeroport' were set in two pamphlets published in 1849 and 1850 -- both of...