Eufaula, Alabama. Eufaula is the largest city in Barbour County, Alabama, United States.
Leonardo da Vinci (1452â1519) is generally credited with inventing the helicopter, but the first practical design was developed only in the 1930s by Russian-born Igor Sikorsky (1889â1972). Today, typical uses for helicopters include military transportation and air-sea rescue.eonardo da Vinci (1452â1519) is generally credited with inventing the helicopter, but the first practical design was developed only in the 1930s by Russian-born Igor Sikorsky (1889â1972). Today, typical uses for helicopters include military transportation and air-sea rescue.
The invention of the helicopter can be traced back to an ancient Chinese toy, a top designed around 400 B.C. which flew when spun between a person's palms. The first helicopter flight may have taken place in a craft piloted by Paul Cornu in 1907, although some doubt he was the first to fly a true helicopter. As of 2014, helicopters are used as flying ambulances, to rescue people on land and at sea, in the military, and to transport passengers.