No one has recorded when well digging started, but surely humans imitated elephants in digging holes in the sand to access cooler water that didn’t make the children sick. Eventually, humankind began to redesign, maintain, and repair the wells they constructed, but when wells became "commodities" in the twentieth century, this maintenance ethic was
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Sprache Englisch ● Format PDF ● Seiten 334 ● ISBN 9780849375774 ● Verlag CRC Press ● Erscheinungsjahr 2009 ● herunterladbar 3 mal ● Währung EUR ● ID 4111161 ● Kopierschutz Adobe DRM
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