Spectral lines

As irony and coincidence would have it, on the opening day of a recent conference at which a retrospective look was taken at local hydroelectric power generation, David Lilienthal, a founding director of the Tennessee Valley Authority and the Atomic Energy Commission´s first chairman, writing in the New York Times, proposed that ¿all over this country there are substantial amounts of renewable sources of electrical energy: the energy in the moving waters of our rivers and waterways. The technology and the manufacturing capability to convert these waters to electricity are here today. No long-range plans or large Federal appropriations or guarantees are needed.¿