1806, from horse + power, established by Watt as the power needed to lift 33,000 pounds one foot in one minute, which is actually about 1.5 times the power of a strong horse. 1 Horse Power or hp is equivalent to 745.7 watts.
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1806, from horse + power, established by Watt as the power needed to lift 33,000 pounds one foot in one minute, which is actually about 1.5 times the power of a strong horse. 1 Horse Power or hp is equivalent to 745.7 watts.