Hal Rogers

Simple text describes the parts of a tractor, how they work, and what they do.

Describes the parts of a grader, how it works, and the work it does at a construction site.

Describes the origins and growth of the well-known motorcycle manufacturer, Harley-Davidson, chronicling the company's successes and failures over the past ninety years.

Describes the parts of a crane, how it works, and the work it does at a construction site.

Describes the parts of a large earthmover, how they operate, and the work they do.

Describes the parts of a tow truck, how to operate them, and the work they do.

Discusses the Super Bowl and notable moments in its history.

Describes the machines that are used to milk cows and goats on modern farms.