Tag: double

Close to the start of the Twentieth Century, Nikola Tesla invented a wonderfully simple vane less turbine engine which developed ten horsepower per pound of engine weight.Through comparison, today's factory powerful, piston engine makes significantly less than one horsepower per pound of engine weight.Tesla achieved this remarkable capacity to weight ratio with cast iron.Using aluminum for a lot of exactly the same device would jump the energy to weight ratio to at the very least twenty horsepower per pound, that was Tesla's goal...