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2. Sodium-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Sodium-vapor_lamp

   A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure and high pressure. Low-pressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor ...

3. File:Low-pressure sodium lamp spectrum.svg - Wikipedia

   en.wikipedia.org/wiki/File:Low-pressure_sodium...

   English: Emission spectrum of a low-pressure sodium lamp. Measurements were made using a USB2000 spectrometer by Ocean Optics. The peak is at 592 nm, however the lamp's dominant wavelength was measured at 588,6 nm. Linear_visible_spectrum.svg has been used for overlaying the visible spectrum over the measured values.

4. Mercury-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Mercury-vapor_lamp

   A 175-watt mercury-vapor light approximately 15 seconds after starting. A closeup of a 175-W mercury-vapor lamp. The small diagonal cylinder at the bottom of the arc tube is a resistor which supplies current to the starter electrode. A mercury-vapor lamp is a gas-discharge lamp that uses an electric arc through vaporized mercury to produce ...

5. Zeeman effect - Wikipedia

   en.wikipedia.org/wiki/Zeeman_effect

   The sodium vapour lamp emits light at 589nm, which has precisely the energy to excite an electron of a sodium atom. If it was an atom of another element, like chlorine, shadow will not be formed. [ 18 ] [ failed verification ] When a magnetic field is applied, due to the Zeeman effect the spectral line of sodium gets split into several components.

6. Gas-discharge lamp - Wikipedia

   en.wikipedia.org/wiki/Gas-discharge_lamp

   A flicker light bulb, flicker flame light bulb or flicker glow lamp is a gas-discharge lamp which produces light by ionizing a gas, usually neon mixed with helium and a small amount of nitrogen gas, by an electric current passing through two flame shaped electrode screens coated with partially decomposed barium azide. The ionized gas moves ...

7. High-intensity discharge lamp - Wikipedia

   en.wikipedia.org/wiki/High-intensity_discharge_lamp

   However, mercury-vapor lamps are falling out of favor and being replaced by sodium-vapor and metal-halide lamps. Metal-halide and ceramic metal-halide lamps can be made to give off neutral white light useful for applications where normal color appearance is critical, such as TV and movie production, indoor or nighttime sports games, automotive ...

8. 2 High-Yield Dividend Stocks to Buy Early in 2025 - AOL

   www.aol.com/2-high-yield-dividend-stocks...

   Image source: Getty Images. Let's examine the key factors that make these two high-yield dividend stocks screen as top buys early in the new year. A healthy prescription for income.

9. Atomic emission spectroscopy - Wikipedia

   en.wikipedia.org/wiki/Atomic_emission_spectroscopy

   The wavelengths of this light can be dispersed and measured by a monochromator, and the intensity of the light can be leveraged to determine the number of excited state electrons present. [2] For atomic emission spectroscopy, the radiation emitted by atoms in the excited state are measured specifically after they have already been excited.