easy coal
71Lock (water transport) — Canal lock and lock keeper s cottage on the Aylesbury Arm of the Grand Union Canal at Marsworth in Hertfordshire, England …
72Electric vehicle — Sustainable energy Renewable energy …
73Chicago Tunnel Company — Under the streets of Chicago, pre 1906. Locale Illinois Dates of operation 1906–1959 T …
74Midlothian, Virginia — Midlothian   Unincorporated community   Ruins of the Grove Shaft air pumping station, now part of the Mid Lothian Mines Park. Country …
75Building the Virginian Railway — began as a project to create an convert|80|mi|km|sing=on long short line railroad to provide access for shipping of untapped bituminous coal reserves in southern West Virginia early in the 20th century. After facing a refusal of the big railroads …
76Durango and Silverton Narrow Gauge Railroad — Durango Silverton Narrow Gauge Railroad Locale La Plata County and San Juan County, Colorado Dates of operation 1881–present Track gauge …
77Jharia — Infobox Indian Jurisdiction native name = Jharia | type = city | latd = 22.3 | longd = 86.7 locator position = right | state name = Jharkhand district = Dhanbad leader title = leader name = altitude = 77 population as of = 2001 population total …
78History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …
79East Kent Light Railway — The East Kent Light Railway was part of the Colonel Stephens group of cheaply built rural light railways in England. Holman Fred Stephens was engineer from its inception, subsequently becoming director and manager. The line ran from Shepherdswell …
80Industrial history of the People's Republic of China — Main articles: Economy and economic history of the People s Republic of China. China s industrial sector has shown great progress since 1949, but in the late 1980s it remained undeveloped in many respects. Although the country manufactured… …
