…soils and other sources may explain some past and persisting cultural” differences. The problem was surely very hard in the locales of miners, potters, glaziers, and smelters.14 Coming to the present,…
…530-SW-86-04, USEPA, Washington, D.C. Chemical Manufacturers Association, Annual editions, United States Chemical Industry Statistical Handbook, Chemical Manufacturers Association, Washington, D.C. U.S. Bureau of Mines, Annual editions, Mineral Commodity Summaries, U.S. Government Printing…
…26. U.S. Bureau of the Census, Statistical Abstract of the United States: 1994(114 ed.), United States Department of Commerce, Washington, DC, 1994. 27. U.S. Bureau of the Census, Historical Statistics of the…
…ETH-Lausanne, Switzerland, 30 August 1996. URL https://sentenext1.epfl.ch/swissmetro. [18] U.S. Department of Transportation, Compendium of Executive Summaries from the Maglev System Concept Definition Final Reports, DOT/FRA/NMI-93/02, pp. 49-81, March 1993. On-line at https://www.bts.gov/smart/cat/CES.html…
…1990); US Department of Transportation, National Transportation Statistics (Washington, DC: Bureau of Transportation Statistics, 1999). Online at https://www.bts.gov/btsprod/nts/. Figure 4. The maximum size of power plants, US. Each line represents…
…can afford. By contrast, in Canada and many developing countries, governments own forests and use concessions to control cutting. In such settings, policies should focus on setting the right standards…
…is restricted, the enterprise tilts from teaching toward the research that brightens the stars. The stars’ ambitions and tastes require not more undergraduates but more workers. Thus, institutions offer or…
…US domestic intercity passenger travel (squiggly lines) analyzed and extrapolated with the logistic substitution model (smooth lines). The scale used renders the S-shaped logistic linear. Sources of data: US Bureau…
…Notwithstanding hopes, the so-called solar and renewable energies (wind, photovoltaics, biomass, et al.) still show promise only for small niches. Solar enthusiasts tend to stress that solar energy is free….
…the responses of smart farmers, smart businessmen, and smart householders, as well as dumb ones. Climate change should not be superimposed on the world as it is, but on the…