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Cargo ships entering one of the busiest ports in the world, Singapore.

Cargo ships entering one of the busiest ports in the world, Singapore.

NOAA's Tide Predicting Machine No. 2

This photo shows the largest of the three sections of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The gears on the left transmit power from the hand crank. The components on the right contribute to the computation of the time of high and low tides. 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. The National Oceanographic and Atmospheric Administration (NOAA) maintains the machine in working order. This photo shows the largest of the three sections of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The gears on the left transmit power from the hand crank. The components on the right contribute to the computation of the time of high and low tides. 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. The National Oceanographic and Atmospheric Administration (NOAA) maintains the machine in working order.

Summation Chain Close-Up

A part of the summation chain of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. By wrapping above and below a series of pulleys, the chain sums their deflections, which is a key component of computing tides. 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. A part of the summation chain of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. By wrapping above and below a series of pulleys, the chain sums their deflections, which is a key component of computing tides. 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.

Illuminated Manuscript, Map of the Tunisian coast with the ports of Bizerte (Binzert) and Tunis (Ṭūnūs) as

Originally composed in 932 AH / 1525 CE and dedicated to Sultan Süleyman I ("The Magnificent"), this great work by Piri Reis (d. 962 AH / 1555 CE) on navigation was later revised and expanded. The present manuscript, made mostly in the late 11th AH / 17th CE century, is based on the later expanded version with some 240 exquisitely executed maps and portolan charts. They include a world map (fol.41a) with the outline of the Americas, as well as coastlines (bays, capes, peninsulas), islands, mountains and cities of the Mediterranean basin and the Black Sea. The work starts with the description of the coastline of Anatolia and the islands of the Aegean Sea, the Peloponnese peninsula and eastern and western coasts of the Adriatic Sea. It then proceeds to describe the western shores of Italy, southern France, Spain, North Africa, Palestine, Israel, Lebanon, Syria, western Anatolia, various islands north of Crete, Sea of Marmara, Bosporus and the Black Sea. It ends with a map of the shores of the the Caspian Sea (fol.374a). See this manuscript page by page at the Walters Art Museum website: art.thewalters.org/viewwoa.aspx?id=19195. Originally composed in 932 AH / 1525 CE and dedicated to Sultan Süleyman I ("The Magnificent"), this great work by Piri Reis (d. 962 AH / 1555 CE) on navigation was later revised and expanded. The present manuscript, made mostly in the late 11th AH / 17th CE century, is based on the later expanded version with some 240 exquisitely executed maps and portolan charts. They include a world map (fol.41a) with the outline of the Americas, as well as coastlines (bays, capes, peninsulas), islands, mountains and cities of the Mediterranean basin and the Black Sea. The work starts with the description of the coastline of Anatolia and the islands of the Aegean Sea, the Peloponnese peninsula and eastern and western coasts of the Adriatic Sea. It then proceeds to describe the western shores of Italy, southern France, Spain, North Africa, Palestine, Israel, Lebanon, Syria, western Anatolia, various islands north of Crete, Sea of Marmara, Bosporus and the Black Sea. It ends with a map of the shores of the the Caspian Sea (fol.374a). See this manuscript page by page at the Walters Art Museum website: art.thewalters.org/viewwoa.aspx?id=19195

Illuminated Manuscript, Map of the coast of Tunisia with the ports of Bizerte (Binzert) and Tunis (Ṭūnūs&#x29

Originally composed in 932 AH / 1525 CE and dedicated to Sultan Süleyman I ("The Magnificent"), this great work by Piri Reis (d. 962 AH / 1555 CE) on navigation was later revised and expanded. The present manuscript, made mostly in the late 11th AH / 17th CE century, is based on the later expanded version with some 240 exquisitely executed maps and portolan charts. They include a world map (fol.41a) with the outline of the Americas, as well as coastlines (bays, capes, peninsulas), islands, mountains and cities of the Mediterranean basin and the Black Sea. The work starts with the description of the coastline of Anatolia and the islands of the Aegean Sea, the Peloponnese peninsula and eastern and western coasts of the Adriatic Sea. It then proceeds to describe the western shores of Italy, southern France, Spain, North Africa, Palestine, Israel, Lebanon, Syria, western Anatolia, various islands north of Crete, Sea of Marmara, Bosporus and the Black Sea. It ends with a map of the shores of the the Caspian Sea (fol.374a). See this manuscript page by page at the Walters Art Museum website: art.thewalters.org/viewwoa.aspx?id=19195. Originally composed in 932 AH / 1525 CE and dedicated to Sultan Süleyman I ("The Magnificent"), this great work by Piri Reis (d. 962 AH / 1555 CE) on navigation was later revised and expanded. The present manuscript, made mostly in the late 11th AH / 17th CE century, is based on the later expanded version with some 240 exquisitely executed maps and portolan charts. They include a world map (fol.41a) with the outline of the Americas, as well as coastlines (bays, capes, peninsulas), islands, mountains and cities of the Mediterranean basin and the Black Sea. The work starts with the description of the coastline of Anatolia and the islands of the Aegean Sea, the Peloponnese peninsula and eastern and western coasts of the Adriatic Sea. It then proceeds to describe the western shores of Italy, southern France, Spain, North Africa, Palestine, Israel, Lebanon, Syria, western Anatolia, various islands north of Crete, Sea of Marmara, Bosporus and the Black Sea. It ends with a map of the shores of the the Caspian Sea (fol.374a). See this manuscript page by page at the Walters Art Museum website: art.thewalters.org/viewwoa.aspx?id=19195

Boats of fishing.

Boats of fishing in Finiterre, Galicia, Spain. Boats of fishing in Finiterre, Galicia, Spain.

Cargo ships entering one of the busiest ports in the world, Singapore.

Cargo ships entering one of the busiest ports in the world, Singapore.

The World Ship visits Portland, Oregon

The World Ship visits Portland, Oregon

Castletown Harbour

Castletown Harbour, Caithness, Scotland, UK. In a late day it was one of the ports of make slab, a lot of shipping went out this port take Caithness slab all over the World.And in 1820 work began on the construction of Castlehill Harbour, intended to allow the easy transport of flagstones from the local quarries to destinations throughout the British Isles and far beyond: Castlehill flagstone found use in places as far afield as South America and Australia. The first cargo of flagstones left Castlehill Harbour in April 1825: many more were to follow.
The workers in Traill's quarry and their families needed somewhere to live, and Traill established a planned village built to a grid pattern inland from Castlehill. This became Castletown and by 1825 was substantially complete. Traill also built Castletown Mill in 1818 to process corn from the surrounding area. Close by is the car park at the end of the beach footpath. This was opened in 2000 and gives access to the excellent beach and dune area to the north east. The 100 people employed in Castletown's flagstone industry in 1825 had increased to 500 by the peak year of 1902, when 35,363 tonnes of flag were produced, worth £23,239. But by the 1920s concrete paving stones had largely replaced the natural material and the industry died. Today's Castletown is a neat village built largely, as you would expect, from the local stone. A series of imposing buildings dominate the centre of the village. The Castletown

Tide Formula Component Cranks on Tide Predicting Machine No. 2

Tide formula component cranks on Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The mechanical arrangement (a slotted crank yoke) converts circular motion to a sinusoidal motion. The operator adjusts the position of the pin on each crank to represent the tide formula at a specific port before starting computations. The pin position affects the amplitude and phase of the sinusoid. 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.

Southwest Harbor

Southwest Harbor on Mount Desert Island, Maine, USA

Face of Tide Predicting Machine No. 2

The output face of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The pen at the top draws the tide height as the paper moves beneath it. The dials below display the predicted tide height and the corresponding date and time. When the machine was in operation, the operator recorded the height and time of high and low tides, which were later reproduced in printed tide tables. 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.

Two Sections of Tide Predicting Machine No. 2

Tide Predicting Machine No. 2 is a special purpose mechanical analog computer for predicting the height and time of high and low tides. 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. Tide Predicting Machine No. 2 is a special purpose mechanical analog computer for predicting the height and time of high and low tides. 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.

Singapore cargo terminal,one of the busiest ports in the world

Singapore cargo terminal,one of the busiest ports in the world

Boka-kotor bay, Montenegro

Boka-kotor bay, Montenegro,
The Kotor Bay is based of several smaller broad gulfs, united by narrower channels, forming one of the finest natural ports in Europe and is flanked by an exceptionally rich variety of cultural monuments from all ages. Boka Kotorska was added to the list of twenty five the most beautiful bays in the world.

A close up ofn ADSL Modem. A close up ofn ADSL Modem.

Singapore cargo terminal,one of the busiest ports in the world

Singapore cargo terminal,one of the busiest ports in the world

World map ports service of shipping line background

World map ports service of shipping line background

Summation Chain

The summation chain runs around pulleys on Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The pulleys move up and down and the chain sums their displacements to compute the height or time of high and low tides. 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.

Container Ship

MS The World

Singapore cargo terminal,one of the busiest ports in the world

Singapore cargo terminal,one of the busiest ports in the world

Illuminated Manuscript, Map of the coast of Catalonia (Spain) with the ports of Barcellona (Bārselūniye) and

Originally composed in 932 AH / 1525 CE and dedicated to Sultan Süleyman I ("The Magnificent"), this great work by Piri Reis (d. 962 AH / 1555 CE) on navigation was later revised and expanded. The present manuscript, made mostly in the late 11th AH / 17th CE century, is based on the later expanded version with some 240 exquisitely executed maps and portolan charts. They include a world map (fol.41a) with the outline of the Americas, as well as coastlines (bays, capes, peninsulas), islands, mountains and cities of the Mediterranean basin and the Black Sea. The work starts with the description of the coastline of Anatolia and the islands of the Aegean Sea, the Peloponnese peninsula and eastern and western coasts of the Adriatic Sea. It then proceeds to describe the western shores of Italy, southern France, Spain, North Africa, Palestine, Israel, Lebanon, Syria, western Anatolia, various islands north of Crete, Sea of Marmara, Bosporus and the Black Sea. It ends with a map of the shores of the the Caspian Sea (fol.374a). See this manuscript page by page at the Walters Art Museum website: art.thewalters.org/viewwoa.aspx?id=19195. Originally composed in 932 AH / 1525 CE and dedicated to Sultan Süleyman I ("The Magnificent"), this great work by Piri Reis (d. 962 AH / 1555 CE) on navigation was later revised and expanded. The present manuscript, made mostly in the late 11th AH / 17th CE century, is based on the later expanded version with some 240 exquisitely executed maps and portolan charts. They include a world map (fol.41a) with the outline of the Americas, as well as coastlines (bays, capes, peninsulas), islands, mountains and cities of the Mediterranean basin and the Black Sea. The work starts with the description of the coastline of Anatolia and the islands of the Aegean Sea, the Peloponnese peninsula and eastern and western coasts of the Adriatic Sea. It then proceeds to describe the western shores of Italy, southern France, Spain, North Africa, Palestine, Israel, Lebanon, Syria, western Anatolia, various islands north of Crete, Sea of Marmara, Bosporus and the Black Sea. It ends with a map of the shores of the the Caspian Sea (fol.374a). See this manuscript page by page at the Walters Art Museum website: art.thewalters.org/viewwoa.aspx?id=19195

Looking into the Top of Tide Predicting Machine No. 2

These components perform key computations for Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The tide prediction formula implemented by the machine includes the addition of a series of cosine terms. The triangular metal pieces are part of slotted yoke cranks which convert circular motion to a vertical motion that traces a sinusoid. Each slotted yoke crank is connected by a shaft to a pulley, which causes the pulley to follow the sinusoidal motion. A chain going over and under pulleys sums each of their deflections to compute the tide. Along the top of the photo, connecting shafts drive slotted yoke cranks on both sides of the machine. 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. The National Oceanic and Atmospheric Administration (NOAA) occasionally displays the machine at its facility in Silver Spring, Maryland. These components perform key computations for Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The tide prediction formula implemented by the machine includes the addition of a series of cosine terms. The triangular metal pieces are part of slotted yoke cranks which convert circular motion to a vertical motion that traces a sinusoid. Each slotted yoke crank is connected by a shaft to a pulley, which causes the pulley to follow the sinusoidal motion. A chain going over and under pulleys sums each of their deflections to compute the tide. Along the top of the photo, connecting shafts drive slotted yoke cranks on both sides of the machine. 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. The National Oceanic and Atmospheric Administration (NOAA) occasionally displays the machine at its facility in Silver Spring, Maryland.

Mechanically Adding Trigonometric Functions

These components perform key computations for Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The tide prediction formula implemented by the machine includes the addition of a series of cosine terms. The triangular metal pieces are part of slotted yoke cranks which convert circular motion to a vertical motion that traces a sinusoid. Each slotted yoke crank is connected by a shaft to a pulley, which causes the pulley to follow the sinusoidal motion. A chain going over and under pulleys sums each of their deflections to compute the tide. 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. These components perform key computations for Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. The tide prediction formula implemented by the machine includes the addition of a series of cosine terms. The triangular metal pieces are part of slotted yoke cranks which convert circular motion to a vertical motion that traces a sinusoid. Each slotted yoke crank is connected by a shaft to a pulley, which causes the pulley to follow the sinusoidal motion. A chain going over and under pulleys sums each of their deflections to compute the tide. 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.

Rotterdam cargo terminal,one of the busiest ports in the world

Rotterdam cargo terminal,one of the busiest ports in the world

Dials on Tide Predicting Machine No. 2

Dials for tide height (outer ring), date, and time on Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. When the machine was in operation, the operator recorded the height and time of high and low tides, which were later reproduced in printed tide tables. 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. Dials for tide height (outer ring), date, and time on Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. When the machine was in operation, the operator recorded the height and time of high and low tides, which were later reproduced in printed tide tables. 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.

London, UK. 1st September, 2013. The Clipper Round the World Yacht Race, leaving Tower Bridge

London, UK. 1st September, 2013. The Clipper Round the World Yacht Race, leaving Tower Bridge

Gallipoli Peninsula

Gallipoli Peninsula

Cargo ships entering one of the busiest ports in the world

Cargo ships entering one of the busiest ports in the world

world wide cargo transport vector concept

world wide cargo transport vector concept

Gears on Tide Predicting Machine No. 2

These gears pass some the energy provided by the operator turning a crank to the rear section of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. 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. These gears pass some the energy provided by the operator turning a crank to the rear section of Tide Predicting Machine No. 2, a special purpose mechanical analog computer for predicting the height and time of high and low tides. 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.

Isolated Router and Cords

Isolated router and cad 5 cords yellow red blue and black. Isolated router and cad 5 cords yellow red blue and black

Gears on Tide Predicting Machine No. 2

Tide Predicting Machine No. 2 is a special purpose mechanical analog computer for predicting the height and time of high and low tides. 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. Tide Predicting Machine No. 2 is a special purpose mechanical analog computer for predicting the height and time of high and low tides. 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.

Tide Predicting Machine No. 2 ("Old Brass Brains"&#x29

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 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. The National Oceanic and Atmospheric Administration (NOAA) occasionally displays the machine at its facility in Silver Spring, Maryland. 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 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. The National Oceanic and Atmospheric Administration (NOAA) occasionally displays the machine at its facility in Silver Spring, Maryland.

Network devices with RJ45 ports

Network devices with RJ45 ports

Ropes of a ship in detail, travel industry

Ropes of a ship in detail, travel industry

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