Information
on asbestos can be found
at the Environmental Protection Agency’s asbestos information
page.
The oil refiner Ashland Inc. provides a summary
of the origins and
processing of crude oil. A higher-level and more detailed
description of the work of an oil refinery is provided in the form of a
trip through the company’s Catlettsburg refinery. Thumbnail pictures of different parts
of the process provide access to a range of useful figures.
Read about modern lost-wax
casting methods at Artworks Foundry, one of the nation’s
leading bronze foundries.
