MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 60
The first user who solved this task is Alfa Omega.
#brainteasers #math #riddles
Aluminium conductorIn 1899, aluminium was first used commercially in the U.S.as an electrical transmission conductor. The Hartford Electric Light Company of Hartford, Connecticut for a transmission to Hartford, Conn. from its waterpower plant at Tariffville, Conn., on Farmington River, at Spoonville, just before Case's Island. The company'a 250-foot concrete dam created a 29 foot head of water which was used to power their hydroelectric plant. The dam powered 2 pairs of 1300-hp water wheels, each connected to a 750-kilowatt generator in a brick powerhouse. The plant opened on Thanksgiving day in 1899 providing electricity from there to Hartford. It was washed away in the flood of 1955. |