"Attempts at electric powered flight date to well before the 19th century. Battery weight and low energy output made it impractical until the 1990s. The author describes the diverse designs of modern electric flying machines--from tiny insect-styled drones to stratospheric airships--and explores developing trends, including flying cars and passenger airliners"--
"Attempts at electric powered flight date to well before the 19th century. Battery weight and low energy output made it impractical until the 1990s. T...
Today's ever-growing fleets of one-wheel, two-wheel and three-wheel light electric vehicles can now be counted in their hundreds of millions. In this third installment of his electric transport history series, the author covers the lives of the innovative engineers who have developed these e-wheelers.
Today's ever-growing fleets of one-wheel, two-wheel and three-wheel light electric vehicles can now be counted in their hundreds of millions. In this ...
