The white phosphor coating of the tubes converts the ultraviolet light into visible light (that we can see).What's inside a compact fluorescent lamp?In case you're wondering, here's what a compact fluorescent light actually looks like inside. (Don't break one apart yourself; there is some...
Fluorescence - This type of microscope uses high-energy, short-wavelength light (usually ultraviolet) to excite electrons within certain molecules inside a specimen, causing those electrons to shift to higher orbits. When they fall back to their original energy levels, they emit lower-energy, longer...
Ultraviolet light air purifiersuse a UV lamp to penetrate the cell of microorganisms once it is drawn into the device. This process kills the pollutant and prevents further contamination. Since this technology does not trap the pollutant on its own, it is often paired with other air purification...
First, he began by shining ultraviolet light on the surface of a metal. When he did this, he was able to detect electrons being emitted from the surface. This was Einstein's explanation: If the energy in light comes in bundles, then one can think of light as containing tiny lumps, or...
How does a halogen light bulb work? How does a halogen light work? How does a three-way light bulb work? How do fireflies light up? How Christmas Lights Work More Great Links Invention of the Light Bulb The Great Internet Light Bulb Book Make a Light Bulb! A 96-year-old light bulb:...
In other words, you can adjust the power supply to become a constant voltage 22V power supply that acts as a constant current power supply once 1.5A in current draw is reached. Do note that while useful, Type A HLG's potentiometer method does not allow for a wide range of dimming, ...
How Atoms Work How MRI Works How Nuclear Medicine Works How Ultrasound Works Do certain radio wave frequencies pose health risks? How far does ultraviolet light penetrate into the body? More Great Links X-Rays: Another Form of Light An Inexpensive X-ray Machine The interaction of radiation with...
How Atoms Work How MRI Works How Nuclear Medicine Works How Ultrasound Works Do certain radio wave frequencies pose health risks? How far does ultraviolet light penetrate into the body? More Great Links X-Rays: Another Form of Light An Inexpensive X-ray Machine The interaction of radiation with...
Since there's obviously no sunlight inside, indoor surfaces typically need light from an ultraviolet lamp to activate the cleaning process. (Some self-cleaning surfaces have an inner layer of tiny LEDs concealed under the outer, working layer, which shine out intermittently to activate the ...
Why a Tube Light produces White Light? The electricity causes tiny particles, called electrons, to travel at high speeds between the poles. These electrons hit the mercury gas, producing ultraviolet radiation. Since the human eye is unable to see this radiation, the glass tube is coated with ...