The Ancient Floating Gardens and Canals of Mexico City’s Xochomilco (“So-Cho-Mil-Co”) Part I

Predating the Hispanic Period and geographically south of the main capital city of Mexico was an ancient large lake called Lake Xochomilco. Over the centuries, beautiful flowers and agricultural products were grown above the water on tall stalks, anchored to trees and filled in the rich mulch and soils from the lake bottom. Eventually, early farmers [...]

Commercial Acetylene Gas Generator, ca. 1905

In the short period of time between kerosene or oil lamps and electricity, many cities, towns, and villages, hotels and  businesses throughout America relied upon the often dangerous acetylene gas generator.  Such also was the case for canal dredges and excavators running day and night, twenty-four hours a day.  The generators mixed calcium carbide and [...]