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The spectral series of hydrogen, on a logarithmic scale. The emission spectrum of atomic hydrogen has been divided into a number of spectral series, with wavelengths given by the Rydberg formula. These observed spectral lines are due to the electron making transitions between two energy levels in an atom.
The Tennessee Department of Highways and Public Works was established by the Tennessee General Assembly in 1915 and tasked with constructing, maintaining, and improving roads throughout the state. That year, the 538-mile (866 km) Memphis to Bristol Highway, later State Route 1 , was designated as the first state highway in Tennessee.
The triangle marker design was the only design until November 1983, when Tennessee divided its routes into primary routes and secondary or "arterial" routes with the adoption of a functional classification system, creating a primary marker and making the triangle marker the secondary marker; primary marker signs were posted in 1984.
Balmer noticed that a single wavelength had a relation to every line in the hydrogen spectrum that was in the visible light region. That wavelength was 364.506 82 nm . When any integer higher than 2 was squared and then divided by itself squared minus 4, then that number multiplied by 364.506 82 nm (see equation below) gave the wavelength of ...
The U.S. Highways in Tennessee are the segments of the United States Numbered Highway System that are maintained by the Tennessee Department of Transportation (TDOT) in the state of Tennessee. All of these highways in Tennessee have a state highway designation routed concurrently along them, though the state highway is hidden and only signed ...
SR 80 north (Pleasant Shade Highway) – Pleasant Shade, Red Boiling Springs: Southern terminus of SR 80: Carthage: 64.8: 104.3: SR 263 north (Turkey Creek Highway) – Defeated: Southern terminus of SR 263: South Carthage: 67.6: 108.8: US 70N / SR 53 (Lebanon Highway/Gordonsville Highway/Cookeville Highway/SR 24) – Lebanon, Gordonsville ...
Map showing the west end of SR 1 in Memphis. State Route 1 (SR 1), known as the Memphis to Bristol Highway, is a 538.8-mile-long (867.1 km) mostly-unsigned state highway in the U.S. state of Tennessee. It stretches from the Arkansas state line at Memphis in the southwest corner of the state to Bristol in the northeast part.
State Route 91 (SR 91) is a state highway in the northeastern portion of the U.S. state of Tennessee, in the area known as the Tri-Cities region. The route connects Johnson City with Damascus, Virginia via Elizabethton , Hunter , and Mountain City .