Final answer:
The Wright Brothers were unique as brothers and business partners because they combined their mechanical experience from their bicycle shop with scientific methods to develop successful airplanes. They conducted careful experiments and made advancements in wing design and aircraft control.
Step-by-step explanation:
The Wright Brothers, Orville and Wilbur Wright, were unique as brothers and business partners because they combined their mechanical experience from their bicycle shop with scientific methods to develop the control structures that made their airplane successful. Despite lacking formal education in engineering or science, they conducted careful experiments with gliders and kites to understand the principles of flight and develop controllable airplane designs. They also made significant advancements in understanding wing design and discovered how to control an aircraft in turns.