Automobiles replaced horses as transportation method by late 1800s. Early cars cost $800-5000, gasoline wagons $600-2000. Electric cars could run 75 miles on one gallon of gasoline. Electric batteries could be charged at 110V DC, alternating current used elsewhere
Born in 1847 in Milan, Ohio to Canadian refugee parents. Homeschooled until age 12, showed early interest in mechanical things. Lost hearing around age 12, treated it as an advantage
Edison patented 1,093 inventions that significantly improved modern technology. He documented 4,000 invention notebooks documenting late 19th-early 20th century progress
Born in Milan, Ohio in 1847, Edison showed early inquisitiveness and curiosity. Moved to Port Huron at age seven, where he received little formal education. Worked as newsboy and candy butcher on Grand Trunk Railroad at age twelve
Thomas Edison was considered father of recorded sound for over a century. Édouard-Léon Scott de Martinville invented phonautograph in 1860. Scott's device used stylus to record sounds on blackened paper
Edison's phonograph was first to record and play back sounds. He developed independently of Scott de Martinville and Charles Cros. Edison's telephone experience influenced his telegraph work