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Why does a fluorscent light not work in the cold?
fluorescent bulbs have mercury in them. There are heaters at the ends of the bulb that vaporizes the mercury to allow the light to be produced ( the fluorescence on the inside of the bulb is what actually glows). If the bulb is cold you do not get the ionization of the mercury to cause the fluorescent powder inside the bulb to glow, or it just glows a small amount.
Is fluorescent light produced by heat?
Not in the way that an incandescent bulb does. A fluorescent lamp uses electricity to excite the particles of mercury vapor in the tube. This excited gas causes a phosphor to glow.
Do fluorescent markers glow under a black light?
Yes of course, that is why they are fluorescent.
Is a light bulb a chemical or physical change?
A light bulb is not a change in and of itself but the process by which it gives off light is physical. While an electric current causes a given component of the bulb to glow (it may be the filament of an incandescent bulb or the vapor in a fluorescent one), but that substance does not change its chemical identity.
What happens to fluorescent minerals when light shines on them?
The minerals glow.
Why does lemon juice glow under black light?
Almost anything fluorescent or neon will glow.
Why does a fluorescent light bulb glow when rubbed with a piece of nylon or silk in the dark?
Because the electrons from the Nylon cloth or silk are being passed to the light bulb
Can a tomato glow when connected to a light bulb?
no
What do you need to make a light bulb glow?
Light bulbCurcitBatteryWires
Do diamonds glow in fluorescent light?
Yes, they have a tenancy to emit a soft colored glow when subjected to ultraviolet light. Famously, the Hope Diamond will glow red-orange for about five minutes.
How does a battery make a light bulb glow?
The flow of electrons from the battery flow through the filament in the bulb causing it to get hot and glow thus producing light.
IF a bulb travels at the speed of light and is turned on will it glow?
It could not travel at the speed of light. But hypothetically, it would glow.
