Design of computer circuits used to be a pencil and paper task followed by laboratory tests, but logic circuit design can now be done in half the time as the engineer accesses a program which simulates the behavior of real digital circuits, and does all the wiring and testing on his computer screen. A simulated laboratory in digital logic has been…

Maintains that sociology was founded in the 19th century as a discipline for the scientific study of social order. Contends that the discipline has been attacked by both liberals and conservatives. Argues that teaching sociology as a laboratory science is the best way to improve the discipline's professional and public image. (CFR)

Discusses the incorporation of environmental chemistry topics into the traditional high school chemistry curriculum. Describes and provides lesson plans for the sulfur cycle and acid rain, and radioactivity and nuclear energy. Considers possible laboratory experiments. (CW)