Da Vinci designed the bridge for use in moving through wild space in monument. Such as lifting the army across the river the bridge it has persuaded a pulley and belt. Make a military flare to come and pull the ROK storage quickly is one of the many types of machinery from shoulders to think of da Vinci.
Da Vinci designed the bridge for use in moving troops through the battlefield in remote areas such as the troops crossed the river. The bridge was built with hoists and conveyors. Soldiers spread out and hoists quickly collected. Is one of many energy-saving equipment from the invention of the DA.
The Da Vinci bridge design for use in moving through the area in the wilderness, such as the troops across the river, the bridge hoist system and the conveyor belt. The soldiers spread out active and hoist away quickly.