An Impact book

Explains the theory of biorhythm and its relationship to rhythms in nature and provides instructions for calculating one's own rhythm positions.

Presents an overview of the history of capital punishment, theories on the causes of crime and the deterrent effects of punitive actions, and the moral and legal principles involved.

Describes two dominant political terms, their history, and what they mean today.

Explains what designer drugs are and how they are different from other drugs, such as cocaine; and discusses their effects on the mind and body, how they are made and distributed, and laws regarding these drugs.

Introduces the scientific study of temperature extremes and how it relates to technology.

Examines the history, legal status, ethics, politics, and medical aspects of abortion and uses personal accounts of women who have had abortions to illuminate both sides of the issue.

Examines evidence indicating a new ice age may be starting and discusses the social and economic impact of drastic climatic changes.

Discusses black holes, what they are, why they exist, and the possible consequences they pose for our universe.

Discusses the investigation into the Challenger catastrophe, the reshaping of NASA, the debate over manned versus unmanned space flights, and the future possibilities for commercial enterprises in space.

Discusses the problem of noise pollution, ranging from the annoyance level to that of a dangerous health hazard in modern society, and describes solutions made possible by noise reduction technology and changes in public health laws.