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- Patent Model of Edison's Automatic Telegraph Transmitter and Receiver Improvement, 1875 -
- 1875
- Collections - Artifact
Patent Model of Edison's Automatic Telegraph Transmitter and Receiver Improvement, 1875
- Patent Model of Edison's Electric Light, 1880 -
- 1880
- Collections - Artifact
Patent Model of Edison's Electric Light, 1880
- Maltese Cross Filament Lamp Made by Hiram Maxim, 1880 -
- 1880
- Collections - Artifact
Maltese Cross Filament Lamp Made by Hiram Maxim, 1880
- Patent Model of Edmondson's Circular Calculating Machine, 1883 - Mechanical calculators used gears, cogs, levers, and rotating drums to solve mathematical problems indirectly. While Edmondson's Circular Calculator was rugged and reliable, its "stepped drum" system required people to slide plates and levers, making it difficult to master and time-consuming to operate. By the late 19th century, improved adding machines became popular, helping to reduce the common errors of human calculation.
- 1883
- Collections - Artifact
Patent Model of Edmondson's Circular Calculating Machine, 1883
Mechanical calculators used gears, cogs, levers, and rotating drums to solve mathematical problems indirectly. While Edmondson's Circular Calculator was rugged and reliable, its "stepped drum" system required people to slide plates and levers, making it difficult to master and time-consuming to operate. By the late 19th century, improved adding machines became popular, helping to reduce the common errors of human calculation.
- Thomas Edison and His Phonograph, 1878 - In 1877, Thomas Edison and his laboratory assistants created a machine that could - for the first time - record and reproduce sound. Called the phonograph, it made Edison an overnight celebrity. While in Washington, D.C., to present to the National Academy of Sciences in 1878, Edison sat with his phonograph for well-known Civil War photographer Mathew Brady.
- April 01, 1878
- Collections - Artifact
Thomas Edison and His Phonograph, 1878
In 1877, Thomas Edison and his laboratory assistants created a machine that could - for the first time - record and reproduce sound. Called the phonograph, it made Edison an overnight celebrity. While in Washington, D.C., to present to the National Academy of Sciences in 1878, Edison sat with his phonograph for well-known Civil War photographer Mathew Brady.
- Menlo Park Laboratory - When Edison moved to Menlo Park, New Jersey, in spring of 1876 the laboratory building contained his entire operation -- a handful of collaborators, office, library, and machine shop as well as laboratory. As the scale of Edison's investigations grew so did the complex, but this building -- dedicated to experimental activities -- was always understood to be the heart of the enterprise.
- 1876-1883
- Collections - Artifact
Menlo Park Laboratory
When Edison moved to Menlo Park, New Jersey, in spring of 1876 the laboratory building contained his entire operation -- a handful of collaborators, office, library, and machine shop as well as laboratory. As the scale of Edison's investigations grew so did the complex, but this building -- dedicated to experimental activities -- was always understood to be the heart of the enterprise.
- "Steam Boat Invented by John Fitch," Copperplate Engraving, circa 1818 - Connecticut-born entrepreneur and inventor John Fitch began building steam-powered boats in the 1780s. His first, <em>Perseverance</em>, was propelled by an unusual drivetrain of mechanized oars along both sides of the craft. The system was effective, but not particularly efficient. Fitch later experimented with screw propellers. He was unable to find commercial success with his designs.
- 1786-1787
- Collections - Artifact
"Steam Boat Invented by John Fitch," Copperplate Engraving, circa 1818
Connecticut-born entrepreneur and inventor John Fitch began building steam-powered boats in the 1780s. His first, Perseverance, was propelled by an unusual drivetrain of mechanized oars along both sides of the craft. The system was effective, but not particularly efficient. Fitch later experimented with screw propellers. He was unable to find commercial success with his designs.
- "Fitch's Steamboat," Wood Engraving, circa 1855 - Connecticut-born entrepreneur and inventor John Fitch began building steam-powered boats in the 1780s. His first, <em>Perseverance</em>, was propelled by an unusual drivetrain of mechanized oars along both sides of the craft. The system was effective, but not particularly efficient. Fitch later experimented with screw propellers. He was unable to find commercial success with his designs.
- 1786-1787
- Collections - Artifact
"Fitch's Steamboat," Wood Engraving, circa 1855
Connecticut-born entrepreneur and inventor John Fitch began building steam-powered boats in the 1780s. His first, Perseverance, was propelled by an unusual drivetrain of mechanized oars along both sides of the craft. The system was effective, but not particularly efficient. Fitch later experimented with screw propellers. He was unable to find commercial success with his designs.
- Patent Model of Edison's Carbon Telephone Transmitter, 1879 -
- 1879
- Collections - Artifact
Patent Model of Edison's Carbon Telephone Transmitter, 1879
- Carbonized Paper Filament Lamp Made by Hiram Maxim, 1880-1881 -
- 1880-1881
- Collections - Artifact
Carbonized Paper Filament Lamp Made by Hiram Maxim, 1880-1881