Billings, Charlene W

Follows a pair of common loons from spring mating to fall migration and discusses the survival problems facing the "great northern diver.".

Examines the history and uses of pesticides, their advantages and disadvantages, their regulation, and the idea that they are a necessary risk in order to feed the world.

Discusses various species of salamanders and how to collect and keep them as pets.

Explains what lasers are and how they work and examines their various uses.

Explains what lasers are and how they work and examines their use in medicine, industry, communications, and other arenas.

Discusses how supercomputers work, how they affect everyday life, and what challenges and advancements lie in the field's future.