What was the Hercules, an eight-engine wooden flying boat designed by Howard Hughes, popularly known as?

On June 18, 1983, who became the first American woman astronaut to visit space?

On June 12, 1979, which became the first human-powered aircraft to cross the English Channel?

What was the first supersonic passenger-carrying commercial airplane, which made its first transatlantic crossing on September 26, 1973, and entered regular service in 1976?

Which Soviet cosmonaut was the first woman to travel into space?

Which rigid airship, powered by two 16-horsepower engines with speeds approaching 20 miles (32 km) per hour, made its initial trial flight in Germany on July 2, 1900?

Where was the first practical subway line in the United States, constructed between 1895 and 1897?

Where in the United States was the first steel arch bridge constructed, which officially opened to traffic on July 4, 1874?

Which inventor developed the pneumatic (air-filled) rubber tire for bicycles?

Who invented the first automobile that was actually built and operated in the United States?

Which French engineer designed and built the first helicopter to perform a crewed-free flight?

Who was the first American woman to fly an aircraft solo?

Who was the first female pilot to fly across the English Channel?

Which American pilot became the first woman to break the sound barrier in 1953 while flying the F-86 Sabre?