What is Glow in the dark
Glow in the dark is the process of absorbing surrounding light energy and releasing this light in the form of a glow, visible only in the dark.
This was discovered back in the 50's. Back then, a chemical called zinc sulphde was used to produce this material. It was not popular because zinc was a toxic substance and the glow achieved was both dim and could not glow beyond a few minutes.
This has changed with the use of a new material called strothium aluminate. Not only is this material non-toxic, it also produces a brighter glow which can last for hours. This breakthrough made manufacturers realise its potential resulting in a range of glow in the dark products available today.
Glow in the dark forum is a good place for discussing about glow in the dark products.
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