I just learned this while researching grow lamps today.
The conversion from nm to K is:
SInce I'm typing this out on a computer, and don't really know how to turn on my funny math symbols, I'm going to rewrite the equation below, with everything in the same place, only replacing the funny symbols with other variable symbols that I can reproduce on a regular keyboard.
nm = 2,897,768 / K
In this equation:
nm = nanometers, or peak wavelength
K = Peak temperature, in degrees Kelvin.
2,897,768 = the number that needs to be in the equation according to some big science and math conference where a whole lot of nerds got together and decided things like the number that needs to be in that spot in the equation. I tried to understand it, but I don't know anything about math terminology and am not smart enough to learn about it tonight before I respond to this, so I can't explain why that number exists, only that it has to be there to complete the conversion.
This equation is called Wien's law, and it is actually a lot more complex than I'm making it here, but to use it properly would take more understanding than I have. This method is not as accurate as if you were to use the full equation, but it's so close that most people even simplify it further to nm = 3,000,000 / K, and still consider it accurate enough to be a practical reference tool.
I'll show a few examples.
A light bulb rated at 4500K translates to 644nm.
644 (nm) = 2,897,768 / 4500 (K)
A light bulb rated at 6500K translates to 446nm.
446 (nm) = 2,897,768 / 6500 (K)
A light bulb rated at 10.000K translates to 290nm.
290 (nm) = 2,897,768 / 10,000K
The sun puts out peak radiation at 5778K, which is approximately 502nm.
502 (nm) = 2,897,768 / 5778 (K)
Adversely, to convert the opposite direction, swap the position of the nm and the K to look like:
K = 2,897,768 / nm
The response to your question would look like this: K = 2,897,768 / 450
K = 6,439K
You'll notice that when you make it a little easier on yourself and use 3,000,000 instead of 2,897,768, the result is quite noticeably inaccurate, but I suppose if you needed that much accuracy, you'd be in a lab somewhere doing this yourself instead of asking a moron like me to explain it.
When light passes through a substance near 0 degrees Kelvin, it bends and becomes deformed.
the temperature of a UV light is 10nm-400 degrees fahrenheit
fire does emit light, however very red light, so technical it could be done. The light from a burning match is about 1700-1800 degrees kelvin(color temperature not heat temperature)and the light from a candle is about 1850-1930 degrees kelvin, witch is about as red as it gets for plants. Plants require both red and blue light in there vegetative stage(red for root development and flowers or fruit, blue for foliage growth. Plants could be grown using fire but only if there was other light involved also, or possibly you could grow plants in the flowering stage with pure fire but its also good to have some blue light in the flowering/fruiting stage - Kalvin Neufeld
1 nanometer is a distance. In vacuum, light travels 1 nanometer in about 3.3 x 10-18 second.Did you intend to ask "What distance does light travel in one nanosecond ?" ?Light travels 29.98 centimeters (rounded) in one nanosecond, which is onlyabout 2% different from 1 foot.So an easy way to remember it is: 1 light-nanosecond = 1 foot.1 full cycle is 1 wavelength.
The wavelength can be just about anything - from kilometers to a tiny fraction of a nanometer.
the temperature of infrared light is 5 degrees kelvin minus 450 degrees fahrenheit
When light passes through a substance near 0 degrees Kelvin, it bends and becomes deformed.
Light is usually measured in candle power or candellas. The temperature of the light is measured in degrees, kelvin. You'll find greater detail at the local library or through research on the internet.
The filament is around 2900 to 3000 degrees Kelvin (add 273 to get Celsius). The surface of the glass envelope could be at varying temperatures, depending on the type of bulb.
the temperature of a IR light is 6500 degrees fahrenheit
the temperature of a UV light is 10nm-400 degrees fahrenheit
The temperature of Xi Draconis is estimated to be 4,445 Kelvin. It is located about 112.5 light years from earth.
Candela are units of light intensity, while kelvins are units of temperature.
If a fluorescent lamp is labeled 6500 oK that is the color temperature of the light it emits. <><><> The number 6500 refers to the temperature (measured in degrees Kelvin) at which a specific theoretical material (referred to as "black body") will glow the color of sunlight at noon.
They're hot (above about 800 degrees Kelvin).
Correct - a shadows are the places where the light from a light source cannot reach because an opaque object is blocking the light's path.Darkness is not the opposite of light, but rather an absense of it. Light is energy. For example, the Fahrenheit scale does not continue into the negative numbers forever. There is actually another scale besides the Celsius scale called the Kelvin scale. In Kelvin, there are no negative degrees. The lowest degree is 0, which means there is absolutely no energy (On a side note, 0 degrees Kelvin is impossible to reach, but scientists have come very close to it).
Daylight's colour temperature is approx. 6000 degrees Kelvin, whereas tungsten light tends to be around 3200 degrees K. In other words, much redder. This can be compensated for by using Tungsten-balanced colour film, or the appropriate compensation filter for film, or your white balance for digital cameras