ATLANTA, Mich. — Sometime around 1970, a geography club marked a route across Michigan called the Polar-Equator Trail. The Michigan Legislature declared it a major tourist attraction. The Detroit Free ...

Ameren Missouri is making plans to build a nearly 30-mile-long transmission line through Callaway and Montgomery Counties.

Higher - The gradients of two perpendicular lines will always multiply to make –1. Make sure you are familiar with finding the equation of a line and calculating gradient to understand equations of ...

An imaginary line bisects America, from sea to shining sea. The 40th parallel north passes through two mountain ranges and a dozens states in the U.S. as it circles the globe. Photographer Bruce Myren ...

Most international borders adhere to some sort of logic. They follow coastlines or rivers, watersheds or natural barriers. They make sense. Not so the 49th parallel. The border from the Lake of the ...

Consumer theory examines how consumers allocate income and make purchasing decisions. All economic activity takes place within the context of limitations. Consumers, therefore, need to make trade-offs ...