Age of Great Inventions
Age of Great Inventions Facts
Railroad companies standardized time in 1883 and carved America into the four time zones still used to this day. Until then, local "sun" time had been used as people traveled from place to place, b...
"When I am through, only the rich will be able to afford candles." "American factories are producing more than the American people can use; American soil is producing more than they can consume. Fa...
Utility (Invention) patents awarded by the U.S. Patent and Trademark Office in 1865: 6,099 Utility (Invention) patents awarded by the U.S. Patent and Trademark Office in 1880: 12,926 Utility (Inven...
alternating current direct current General Electric
economies of scale, economy of scale The gains in production output or the savings of cost achieved with the increased efficiency of large scale production processes. Gilded Age From the title of M...
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