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Having spent his "wilderness years" in the late 1930s warning of the dangers of diplomatic and military weakness and the growing menace of Nazism, in 1946 Churchill made a trip to Fulton, Missouri, to...

This volume reports in detail how a particular portion of the American wilderness developed into a settled farming community. To fully comprehend the history of the American people in the early national period, an understanding of this transformation from forest to community--and the pattern of life within such communities where the vast majority of the people live--is essential.

Three major conclusions emerge from Philip L. White's study of Beekmantown, New York. First, the economic advantages of the frontier attracted a first generation of settlers relatively high in social and...

Online social media have transformed the face of human interaction in the 21st century. Wikis, blogs, online groups and forums, podcasts, virtual worlds, and social tagging are but a few of the applications enabling innovative behaviors that support acquisition, access, manipulation, retrieval, and visualization of information. It is, therefore, no surprise that educational practitioners and theorists have begun to explore how social media can be harnessed to describe and implement new paradigms for communication, learning, and education.

The editors' goal in publishing this book was to...

Phosphorus (P) is an essential macronutrient for plant growth. It is as phosphate that plants take up P from the soil solution. Since little phosphate is available to plants in most soils, plants have evolved a range of mechanisms to acquire and use P efficiently - including the development of symbiotic relationships that help them access sources of phosphorus beyond the plant's own range. At the same time, in agricultural systems, applications of inorganic phosphate fertilizers aimed at overcoming phosphate limitation are unsustainable and can cause pollution.

This latest volume in...

So wurde der Traum vom Fliegen Wirklichkeit
Von Otto Lilienthals wagemutigen Flugversuchen über die ersten Flugzeug-Prototypen bis zum Eurofighter zeichnet der Bildband die Entwicklung der Luftfahrt nach. Mit mehr als 800 Flugzeug-Modellen werden alle wichtigen Fahrzeuge der Lüfte auf zahlreichen Galerieseiten und detaillierten Sonderseiten präsentiert. Über 1300 Fotos und viele Hintergrundinfos zu Herstellern, Motoren und neuesten Entwicklungen lassen die Geschichte der Luftfahrt lebendig werden.

Eine...