Neon Lamp
Neon Lamp - Related Videos
08:06
Neonatal Subventricular Zone Electroporation
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Cited by 31 •
2013
We demonstrate a minimally invasive technique referred to as neonatal subventricular zone electroporation. The technique consists of injecting plasmid DNA into the lateral ventricles of neonatal pups and applying electrical current to deliver and genetically manipulate neural stem...
09:35
Neurodevelopmental Reflex Testing in Neonatal Rat Pups
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Cited by 77 •
2017
Behavioral testing is the gold standard for determining outcomes following brain injury, and can identify the presence of developmental disabilities in infants and children. Neurodevelopmental reflexes are an early indicator of these abnormalities. A host of easily accomplished developmental reflex tests in the neonatal rodent were developed and described here.
07:54
Isolation of Neonatal Extrahepatic Cholangiocytes
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Cited by 17 •
2014
A technique to isolate cholangiocytes from the extrahepatic bile ducts of neonatal mice is described. The ducts are meticulously dissected, and then cells are isolated by outgrowth in thick collagen gels. This method provides a useful tool for studying extrahepatic bile duct development and pathology.
08:15
Measuring Left Ventricular Pressure in Late Embryonic and Neonatal Mice
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Cited by 18 •
2012
Measuring left ventricular pressure (LV) in embryonic and neonatal mice is described. Pressure is measured by inserting a needle connected to a fluid-filled transducer into the LV under ultrasound guidance. Care must be taken to maintain normal cardiac function during the experimental protocol.
06:27
Transcutaneous Microcirculatory Imaging in Preterm Neonates
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Cited by 6 •
2015
Microcirculatory imaging (MI) is used to monitor peripheral perfusion in critically ill or preterm neonates. This manuscript and video demonstrates the optimal approach for obtaining high-quality images.
FAQs
Collisions transfer energy from accelerated free electrons to neon atoms, placing the atoms in excited electronic states. These states do not persist indefinitely, so the atoms return to lower energy states and release the stored energy as light. This sequence connects electrical energy input with atomic excitation and subsequent emission at the particle level.
The red-orange appearance results from neon atoms releasing energy as their electrons return from excited states to lower states. Because atomic energy levels are quantized, only particular energy changes occur, producing characteristic emitted light rather than a continuous range with no identifiable pattern. This makes the lamp a visible example of atomic emission in chemistry.
A gas normally does not conduct electricity in the same way as a metal, but free electrons can move through low-pressure gas when an applied voltage accelerates them. Their collisions with neon atoms sustain excitation and emission. The lamp therefore demonstrates that electrical conductivity in gases depends on moving charged particles and their interactions with atoms.
An educational demonstration applies a voltage across the lamp’s two electrodes and observes the resulting red-orange emission. The visible response allows students to connect electrical input with electron acceleration, atomic excitation, energy-level changes, and light production. It provides a direct classroom illustration of how matter and energy interact without requiring observation of individual atoms.
Related discharge tubes can produce emissions associated with the atoms present in the tube. Comparing observed emission characteristics can therefore support qualitative elemental analysis, meaning identification of elements rather than measurement of their amounts. In chemistry, this application extends the lamp’s demonstration of atomic emission toward analyzing elemental composition through light.
The same emission principle supports several uses, including indicator lights, display technologies, and educational demonstrations of emission spectra. In spectroscopy, emitted light provides information connected to atomic energy changes, while practical devices use the visible glow as a signal or display element. These applications show how a chemical emission process can serve analytical and technological purposes.