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The first miners were farmers who dug the coal from exposed beds and sold it by the bushel. https://www.worldcoal.org/sites/default/files/styles/basic_page_header/public/shutterstock_133998776.jpg?itok=6uJ3cgVR
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William Hart noticed gas bubbles rising to the surface of a creek so he dug a 27 foot well to obtain a larger flow of gas to the source. http://i.huffpost.com/gen/1417308/thumbs/o-NATURAL-GAS-facebook.jpg
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Blend of high-proof ethyl alcohol with 20% to 50% turpentine to color the flame and a few drops of camphor oil to mask the smell. https://www.mccrone.com/mm/wp-content/uploads/2015/03/ALCOLAMP_fig06_full.jpg
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Due to his efforts, petroleum becomes the primary source of energy in the United States and all around the world. http://www.cala.ca/_images/petro_testing_001.jpg
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Charles F. Brush invented the first windmill that can generate electricity. http://dreams.metroeve.com/wp-content/uploads/2016/07/Windmill.jpg
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John D. Grant drilled the well. http://www.ucsusa.org/sites/default/files/images/2014/12/energy-renewable-geothermal-plant-nesjavellir-power-station-iceland.jpg
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largest producer of energy until 1948. https://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Hoover_sm.jpg/934px-Hoover_sm.jpg
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Due to the demand of automobiles. http://images.indianexpress.com/2015/01/petroleum-l.jpg
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It was barely enough to power a few light bulbs but was a huge leap in advancements. https://ec.europa.eu/energy/sites/ener/files/styles/main_image_static_page/public/176993302_1.jpg?itok=-73B3Xdk
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It supplied power for water pumping and residential electricity to 15 homes until 1983, when grid power reached the village. https://s3.amazonaws.com/s3.timetoast.com/public/uploads/photos/8040238/solar.jpg?1478299674
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