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There are various Lucas families in the United States. The first on record is William Lucas of Cornwall, England who emigrated in 1625 or 1626 and settled in Surrey Co., Virginia. Lucas families later settled in Maryland, Pennsylvania, Texas, Illinois and elsewhere.
In this book the authors consider the natural environment as an integrated system. The physical, chemical and biological processes that govern the behaviour of the environmental system can thus be understood through mathematical modelling, and their evolution can be studied by means of numerical simulation. The book contains a summary of various efficient approaches in atmospheric prediction, such as numerical weather prediction and statistical forecast of climate change, as well as other successful methods in land surface modelling. The authors explore new theories and methods in environment prediction such as systems analysis and information theory. Attention is given to new achievements in remote sensing tele-metering and geographic information systems.
A Social History of American Technology, Second Edition, tells the story of American technology from the tools used by its earliest inhabitants to the technological systems--cars and computers, aircraft and antibiotics--that we are familiar with today. Ruth Schwartz Cowan and Matthew H. Hersch demonstrate how technological change has always been closely related to social and economic development, and examine the important mutual relationships between social history and technological change. They explain how the unique characteristics of American cultures and American geography have affected the technologies that have been invented, manufactured, and used throughout the years--and also the reverse: how those technologies have affected the daily lives, the unique cultures, and the environments of all Americans.