Main Question or Discussion Point
I don't quite understand the explanation at wiki;
What does this mean (the vaporizes bit)? the sodium turns to gas, which then glows? when it cools does it condense back to a solid when its turned off again?when the lamp is turned on it emits a dim red/pink light to warm the sodium metal and within a few minutes it turns into the common bright orange/yellow color as the sodium metal vaporizes.