P. M Boekhoff

Discusses what geysers are, where they are located, why they erupt, how different kinds of geysers behave, and their interactions with their environments.

Discusses the early childhood, education, interests, and inventions of Galileo, as well as how his studies led to conflict with the Church and tradition.

Describes what meteors are and how they are formed, where they come from, different types of meteors, and how they have been studied.

Discusses the life of Wolfgang Amadeus Mozart, including his early childhood, flamboyant personality, travels, compositions, and musical legacy.

Discusses the early history of Oregon beginning with the Native Americans who have lived there for many years, through European exploration and settlement, to statehood in 1859.