This US industrialist's company licensed Nikola Tesla's polyphase AC motor patents in 1888.

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HistoryOne small aha

Your new ahaGeorge Westinghouse

Westinghouse developed railway air-brake systems before his major electrical ventures. Source: George Westinghouse ↗

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13Steam engine · the energy source converted into mechanical motionRECALL
The energy of steam.
Steam engines powered pumps, factories, locomotives, and ships in the Industrial Revolution.
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14Electrical telegraph · the form in which messages travelledRECALL
Encoded messages as electrical signals.
It changed communication by making information travel much faster than a person or horse.
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15This dot-and-dash encoding system became closely associated with electrical telegraphy.RECALL
Morse code.
It represents letters and numbers with dots and dashes.
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