Search results
Electric light. An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the socket of a light fixture, which is often called a "lamp" as well.
Nov 22, 2013 · In 1835, the first constant electric light was demonstrated, and for the next 40 years, scientists around the world worked on the incandescent lamp, tinkering with the filament (the part of the bulb that produces light when heated by an electrical current) and the bulb’s atmosphere (whether air is vacuumed out of the bulb or it is filled with ...
Higher energy light such as gamma rays, X-rays, and high energy UV light cause ionizations. They transfer enough energy to electrons so they can escape from the pull of the atom’s nucleus and turn the atom into an ion. Low energy UV and visible light cause electron transitions.
- Does light have different speeds depending on the medium (e.g. air, water, etc) it is in? If it does...The speed of light can change. The highest ever recorded is 299 792 458 m / s. In 1998, Danish physicist Lene Vestergaard Hau led a combined team f...
- So do different kinds of lightbulbs give off different spectrums?yeah! for example some lightbulbs are more "warm" and orangy and some are more white
- Where do we find a photon in an atom?Any kind of Electro-Magnetic wave travels in small energy packets called photons. In the visible range of light these are called photons and in the...
- Why do things travel in waves and not in a straight line ? simply if I throw a ball , it doesnt make...actually, you thrown ball does make a wave. its just that the wavelength is so small, you could not observe or measure it DeBroglie said: Wavelengt...
- from where photon is emmited or absorbed?Photons can be absorbed by electrons. These will increase in energy and jump energy levels. Afterward, the same electron can emit the photon to jum...
- I am confused: is wave the energy itself or the disturbance in electromagnetic field caused by energ...a wave can be described as the transmission of disturbance from one point to another OR the transmission of energy from on point to another
- Planck's equation for energy of an electromagnetic waves depends on only one factor - frequency or w...it might be too late but ill try to answer. as per my understanding, a photon's energy is dependent only on its wavelength, that's what quantum mec...
- So the only thing I'm having trouble with is the relationship between a photon's frequency and a lig...First you cannot treat the energy of a classical light wave the same way as the energy of a photon. The energy of a photon is E = hf. The energy of...
- How do you sole for wavelength?c/v gives [m/s] / [Hz]. And knowing that Hz (Hertz) is equal to 1/s, then we have [m/s] / [1/s] which gives us after removing the seconds unit to g...
- Early research & developments. The story of the light bulb begins long before Edison patented the first commercially successful bulb in 1879. In 1800, Italian inventor Alessandro Volta developed the first practical method of generating electricity, the voltaic pile.
- Joseph Swan vs. Thomas Edison. In 1850, English chemist Joseph Swan tackled the cost-effectiveness problem of previous inventors and by 1860 he had developed a light bulb that used carbonized paper filaments in place of ones made of platinum.
- The first practical incandescent light bulb. Where Edison succeeded and surpassed his competition was in developing a practical and inexpensive light bulb, according to the DOE.
- Tungsten filaments. William David Coolidge, an American physicist with General Electric, improved the company's method of manufacturing tungsten filaments in 1910.
In the period from 1878 to 1880 Edison and his associates worked on at least three thousand different theories to develop an efficient incandescent lamp. Incandescent lamps make light by using electricity to heat a thin strip of material (called a filament) until it gets hot enough to glow.
On View 1 East. Online. In 1878, Thomas Alva Edison set out to develop a practical electric light. For over a year, Edison and the staff at his Menlo Park Laboratory experimented with countless materials in the search for a practical filament.
Edison Light Bulb, 1879 Thomas Edison used this carbon-filament bulb in the first public demonstration of his most famous invention—the light bulb, the first practical electric incandescent lamp. The light bulb creates light when electrical current passes through the metal filament wire, heating it to a high temperature until it glows.
Discover more placesNear Columbus, OH
