Electricity
Power stations used turbines to spin (by water or steam) electrical generators to create electricity. The generators consisted of electrical wires being rotated around large magnets. This photo shows electricity in the early days - can you find the three differences in this photo hunt puzzle?
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In the early days of electricity there was a huge battle between using A/C or D/C as the industry standard. Thomas Edison favored D/C, but Edisons old employee Nikola Teslas A/C method ended up prevailing. |
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