. "Excursions in science. Program no. 105, Roman numerals vs decimals Excursions in science. Program no. 106, Electronics in wartime"@en . "Roman numerals versus decimals"@en . . "Science radio programs"@en . . . "Educational radio programs"@en . "Roman numerals vs decimals"@en . . . . . . . . "Radio serials"@en . . . . "Program no. 105: A discussion about roman numerals versus the decimal system. Focus on the origin and usage of both systems. Based on a research paper by Rev. William F. Burns. Program no. 106: A discussion about electronic research during wartime and the hyper production of electronics to increase military efforts. Based on a research paper by W.C. White."@en . "Nonfiction radio programs"@en . . . . . . .