“普林斯顿”号螺旋桨军舰在人类发明螺旋桨之前,船舶的推动力来自人力和风帆,当船舶用于海上战争时,其动力的大小显得十分重要。为了在战争中获得更大的冲力和更快的速度,舰船上要拿出更多的人员充当划桨手。这样就大大限制了舰船的发展和作战能力的提高。于是,人们便极力寻找比风帆和人力更大的动力来源。螺旋桨就是在这样的背景下诞生的。 “Princeton ” propeller warships Before humans invented the propeller, the driving force of the ship came from manpower and sailing. When the ship was used for maritime warfare, its power was very important. In order to get more momentum and faster speed in the war, the ship to take more personnel to act as paddles. This greatly limits the development of ships and combat capabilities. As a result, people are keen to find a greater source of power than sails and manpower. Propeller is born in this context.