You can learn a lot from bicycles about:

True or false.

You can learn a great deal from bicycles in terms of:

T/F The history of the last century. True.
More info: In the late 1880s, the bicycle was the focal point of technological innovation in the US. In the last decade of the 19th century, at least one-third of all new patent applications at the U.S Patent Office were bicycle related.

T/F The evolution of commerce. True.
Sewing machine factories had the equipment and skills to build bicycles, so some companies made the shift to this new, promising business. One such converted engineer was James Starley, one of the leading bicycle makers of his generation. Starley made a series of basic technological improvements that led to the development of the modern bicycle. As early as the 1870s, he devised ways to make steel tubing light yet strong enough to build bicycles.

T/F Physics. True.
(introduction to gyroscope section)

Sources:
http://www.fi.edu/learn/sci-tech/bicycle-tech/bicycle-tech.php?cts=instrumentation
*[From The American Bicycle. Pridmore and Hurd, 1995.]