…year. 20 At the height of the rail era, an American took one rail trip each year. 21 Also, people mostly travel to meet people. Of American travel time, about 30 percent is…
…Invention to Application, National Academy, Washington DC., USA, pp. 45-100. Starr, C. and Rudman, R., 1973, Parameters of technological growth, Science 182:358-364. Taylor, J.W.R., ed., 1984, Jane’s All the World’s Aircraft 1984-1985, Jane’s,…
…of many Americans left those lands behind and harder to understand why people have fought so hard over them. Sometimes people fight most where the stakes are low. Certainly rural…
…Life (CoML). The first is simply the chance for exciting discoveries about the world in which we live. Much remains to be discovered about life in the oceans. For example,…
…climate, topography or other local conditions. Great parts of the new worlds were dedicated to cultivation of single crops to supply world markets and to smooth availability through the year….
…largest city with perhaps 10 million people. Today Japan’s Shinkansen Corridor extending from Tokyo to Osaka houses some 80 million. Worldwide the human population is now 55 percent urban. By…
…Problems and opportunities frequently cross national borders. Informal and formal international arrangements-loosely termed “regimes,” defined here as systems of rule or government that have widespread influence–are for the collective management…
…views my city through a soda straw. They only look at one thing at a time, for instance, underground storage tanks, or stormwater runoff, drinking water, trucker safety. . ….
…2020, leading to a fleet of 500 5 GW ZEPPs by 2050. This does not seem an impossible feat for a world that built today’s worldwide fleet of some 430 nuclear…
…(1991) The Overworked American. New York: Basic. Statistics Bureau, Management and Coordination Agency (1987) Japan Statistical Yearbook. Tokyo. Strasser S. (1982) Never Done: A History of American Housework. New York: Panthion. Szalai A.,…