Statistics for occurrence #1 of “United States” in entry engineering of Harper's Encyclopedia of United States History:
... of 5,000 horsepower, and form a very important part of the plant.
The other gravity motors are windmills and wave-motors.
Wind-mills are an old invention, but have been greatly improved in the United States by the use of the self-reefing wheel.
The great plains of the West are subject to sudden, violent gales of wind, and unless the wheel was automatically self-reefing it would often be destroyed.
...
Max. Freq. | Min. Freq. | ||||||
---|---|---|---|---|---|---|---|
Entity | Corpus | Doc | Corpus | Doc | |||
† | United States (United States) | 100,886 | 16,340 | 0 | 0 | 0 user votes | |
United States (New Mexico, United States) | 6 | 0 | 0 | 0 | 0 user votes |
† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.