<P> Research conducted by universities, hospitals, and corporations also contributes to improvement in diagnosis and treatment of disease . NIH funded the basic research on Acquired Immune Deficiency Syndrome (HIV / AIDS), for example . Many of the drugs used to treat this disease have emerged from the laboratories of the American pharmaceutical industry . </P> <P> Radio, television, newspapers, movies, music, games </P> <P> This section discusses technology, scientific studies, engineering, and overall impact . </P>

Why was the national road a major advancement in american history