National Geographic : 1993 Jul
We may be reaching a larger audience than we think. A biochemistry lecture ' dish in ricochets off a metal orbit. A business seminar lands roof in archaeology electronic trip ancient Greece. Each day, as microwaves flash across the cosmos, Public Television is tearing down the barriers toauc tion i ,_ all people, in big cities small towns alike, learning services might unavailable them. Opportunities our multi-state satellite hookup, which istackling problem of teacher shortages transporting instead of faculty. Supplying high with live, inter-active in math, science foreign language. Please open your textbooks to the chapter on Differential Calculus.