…1975). Wood and hay, the prevalent energy sources at the start of the nineteenth century, are bulky and awkward to transport and store. Consider if every high-rise resident needed to…
…Population in the UK, 1856-1981. Data Source: Armstrong (1984), Matthews et al. (1982), Williams (1983). Figure 2. Working Time Indicators (hours/week, weeks/year, years at work) for Female Working Population in the UK, 1856-1981….
…other models introduce higher-order parameters where the physical interpretation is less clear than in the case of the Bi-logistic. More research is needed in order to determine if the Bi-logistic…
…— not just for their ecological and industrial services but also for the sake of order and beauty. Fortunately, the twentieth century witnessed the start of a “Great Restoration” of…
…a period of decades, steam engines overtook water wheels. In America, steam needed one hundred years to supersede water. Though we recall the nineteenth century as the age of steam,…
…A son-in-law and a cheap lifetime assistant in his lab all for a few thousand rubles.” The next few cases were simple ones. A health care expert who needed subjects…
…faculty. The Forgotten Need For Teachers In the 1950s, war veterans swelled the ranks of students. Recovering from the thin years of the Depression, colleges needed teachers quickly. Fresh Ph.D.’s…
…much to spare and restore Nature during the 21st century, even as more numerous humans prosper. In this essay I explore the areas in human use for fishing, farming, logging,…
…Most of the databases needed to specify the model already exist, and a growing number of research findings are available. Indeed, pulling together the information needed to build the model…
…the carbon stored in U.S forests grew one-third, adding close to 9 billion metric tons, equal to more than six years’ present U.S. emissions of carbon from burning fossil fuels…