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visible on the left, computed the height of tides. These were displayed on the paper tide curve visible at the top right and on the dial below the paper.The U.S. government used Tide
Predicting Machine No. 2 from 1910 to 1965 to predict tides for ports around the world. The machine, also known as “Old Brass Brains,” uses an intricate arrangement of gears, pulleys, chains, slides, and other mechanical components to perform the computations.A person using the machine would require 2-3 days to compute a year’s tides at one location. A person performing the same calculations by hand would require hundreds of days to perform the work. The machine is 10.8 feet (3.3 m) long, 6.2 feet (1.9 m) high, and 2.0 feet (0.61 m) wide and weighs approximately 2,500 pounds (1134 kg). The operator powers the machine with a hand crank.
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visible on the left, computed the height of tides. These were displayed on the paper tide curve visible at the top right and on the dial below the paper.The U.S. government used Tide
Predicting Machine No. 2 from 1910 to 1965 to predict tides for ports around the world. The machine, also known as “Old Brass Brains,” uses an intricate arrangement of gears, pulleys, chains, slides, and other mechanical components to perform the computations.A person using the machine would require 2-3 days to compute a year’s tides at one location. A person performing the same calculations by hand would require hundreds of days to perform the work. The machine is 10.8 feet (3.3 m) long, 6.2 feet (1.9 m) high, and 2.0 feet (0.61 m) wide and weighs approximately 2,500 pounds (1134 kg). The operator powers the machine with a hand crank.
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Tide
Predicting Machine No. 2 is a special purpose mechanical analog computer for predicting the height and time of high and low tides. When the machine was routinely used, the operator would sit at the desk and turn the crank on the left, which powered the machine. Mechanical components, partially
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Tide
Predicting Machine No. 2 is a special purpose mechanical analog computer for predicting the height and time of high and low tides. When the machine was routinely used, the operator would sit at the desk and turn the crank on the left, which powered the machine. Mechanical components, partially
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Tide
Predicting Machine No. 2 ("Old Brass Brains")
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Click on a date/time to view the file as it appeared at that time.
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38° 59′ 29.62″ N, 77° 01′ 46.07″ W
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copyrighted, dedicated to the public domain by copyright holder
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Add a one-line explanation of what this file represents
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Tide
Predicting Machine No. 2 ("Old Brass Brains").jpg
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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