Secret Engineer: How Emily Roebling Built the Brooklyn Bridge

On a warm spring day in 1883, a woman rode across the Brooklyn Bridge with a rooster on her lap.

It was the first trip across an engineering marvel that had taken nearly fourteen years to construct. The woman's husband was the chief engineer, and he knew all about the dangerous new technique involved. The woman insisted she learn as well.

When he fell ill mid-construction, her knowledge came in handy. She supervised every aspect of the project while he was bedridden, and she continued to le...