Du Pont tries to clean up its act

Article Abstract:

Du Pont, the nation's largest chemical manufacturer, has seen its environmental law group grow as federal and state pollution regulations have expanded. The advent of the Comprehensive Environmental Response, Compensation and Liability Act, also known as Superfund, has cost Du Pont millions in legal fees, penalties and liabilities. The 13 member environmental law group focuses on preventative measures and holds its own costs down by using paralegals, outside counsel for litigation and sharing counsel with other participants in Superfund cases.

Petroleum refining, Ethical aspects, Chemical industry, E.I. du Pont de Nemours and Co.

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The World Versus RCA: Circumventing the Superhet

Article Abstract:

Manufacturers of radio receivers developed good and bad tuning circuits in the 1920s as RCA refused to license their patent for a superior design. The company's superheterodyne circuit required only one knob for tuning. The various innovative circuits which tried to compete with the RCA circuit are illustrated.

Consumer electronics, History, Radio equipment

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A womb with a view

Article Abstract:

Researchers are combining existing imaging technology to create a clearer and more informative picture of mammalian embryos. The new technologies are noninvasive and add depth and time to two dimensional images. The applications extend to genetics and molecular biology.

Innovations, Human embryo, Medical imaging equipment

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