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- Concrete Road Sections for Use in Experimental Impact Tests, Arlington, Virginia, 1921-1922 -

- 1921-1922
- Collections - Artifact
Concrete Road Sections for Use in Experimental Impact Tests, Arlington, Virginia, 1921-1922
- Fessenden Variable Coupler, Used at Arlington Wireless Station NAA, 1913-1917 -

- 1913-1917
- Collections - Artifact
Fessenden Variable Coupler, Used at Arlington Wireless Station NAA, 1913-1917
- Portable Road Impact Testing Machine Designed by Earl B. Smith, 1921-1922 -

- 1921-1922
- Collections - Artifact
Portable Road Impact Testing Machine Designed by Earl B. Smith, 1921-1922
- Wireless Towers at Naval Radio Station, Radio, Virginia, circa 1930 -

- circa 1930
- Collections - Artifact
Wireless Towers at Naval Radio Station, Radio, Virginia, circa 1930
- Rotor from Fessenden Rotary Spark Gap, Used at the Naval Wireless Station NAA, Arlington, Virginia, 1913 - This device was part of a system used to amplify the time signal from U.S. Navy station NAA at Arlington, Virginia. Station NAA received a time signal from the Naval Observatory clock via telegraph wire, rebroadcasting it via a powerful transmitter to receivers all over the nation. Americans utilized radio technology to set their clocks to this standardized signal.

- 1913
- Collections - Artifact
Rotor from Fessenden Rotary Spark Gap, Used at the Naval Wireless Station NAA, Arlington, Virginia, 1913
This device was part of a system used to amplify the time signal from U.S. Navy station NAA at Arlington, Virginia. Station NAA received a time signal from the Naval Observatory clock via telegraph wire, rebroadcasting it via a powerful transmitter to receivers all over the nation. Americans utilized radio technology to set their clocks to this standardized signal.
- U. S. Wireless Station, Fort Myer, Virginia, circa 1914 -

- circa 1914
- Collections - Artifact
U. S. Wireless Station, Fort Myer, Virginia, circa 1914
- Transmitter Room of the Naval Wireless Station NAA, Arlington, Virginia, 1912 -

- 1912
- Collections - Artifact
Transmitter Room of the Naval Wireless Station NAA, Arlington, Virginia, 1912
- Orville Wright Piloting the Wright Model A Flyer over Arlington Cemetery Gate and Wall, 1908 - While his brother was demonstrating their airplane in France, Orville Wright made demonstration flights of his own for the United States Army Signal Corps at Fort Myer, Virginia. All went well until September 17, 1908, when a cracked propeller caused the plane to crash. Orville survived with serious injuries, but passenger Lt. Thomas Selfridge was killed -- the first airplane fatality.

- 1908
- Collections - Artifact
Orville Wright Piloting the Wright Model A Flyer over Arlington Cemetery Gate and Wall, 1908
While his brother was demonstrating their airplane in France, Orville Wright made demonstration flights of his own for the United States Army Signal Corps at Fort Myer, Virginia. All went well until September 17, 1908, when a cracked propeller caused the plane to crash. Orville survived with serious injuries, but passenger Lt. Thomas Selfridge was killed -- the first airplane fatality.