How do glow in the dark stars work?

Answer 1

Nothing can glow in the bright.
That is why they glow in the dark.

Answer 2

The name "glow in the dark stars" is how it works. The stars glow in the dark. So, leave it in the dark, and it'll start to glow! Ahaha.

Answer 3

From: howstuffworks.com

"You see glow-in-the-dark stuff in all kinds of places, but it is most common in toys. My son, for example, has a glow-in-the-dark yo-yo, a glow-in-the-dark ball, a glow-in-the-dark mobile and even (if you can believe it) a pair of glow-in-the-dark pajamas! They make him easy to find at night!

"If you have ever seen any of these products, you know that they all have to be "charged". You hold them up to a light, and then take them to a dark place. In the dark they will glow for 10 minutes. Some of the newer glow-in-the-dark stuff will glow for several hours. Usually it is a soft green light, and it is not very bright. You need to be in nearly complete darkness to notice it.

"All glow-in-the-dark products contain phosphors. A phosphor is a substance that radiates visible light after being energized. The two places where we most commonly see phosphors are in a TV screen or computer monitor and in fluorescent lights. In a TV screen, an electron beam strikes the phosphor to energize it (see How Television Works for details). In a fluorescent light, ultraviolet light energizes the phosphor. In both cases, what we see is visible light. A color TV screen actually contains thousands of tiny phosphor picture elements that emit three different colors (red, green and blue). In the case of a fluorescent light, there is normally a mixture of phosphors that together create light that looks white to us.

"Chemists have created thousands of chemical substances that behave like a phosphor. Phosphors have three characteristics:

The type of energy they require to be energized
The color of the visible light that they produce
The length of time that they glow after being energized (known as the persistence of the phosphor)

"To make a glow-in-the-dark toy, what you want is a phosphor that is energized by normal light and that has a very long persistence. Two phosphors that have these properties are Zinc Sulfide and Strontium Aluminate. Strontium Aluminate is newer -- it's what you see in the "super" glow-in-the-dark toys. It has a much longer persistence than Zinc Sulfide does. The phosphor is mixed into a plastic and molded to make most glow-in-the-dark stuff."

Answer 4

We all need someone
To talk to in our life,
A friend to whom we run
In times of stress or strife

A friend who's always there
Throughout the years,
A friend we know will care
And take away our fears.

A friend who's always near,
Waiting for our call,
To wipe away our tears,
And lift us when we fall.

A loving friend indeed,
On whom we can depend
To fulfill our every need -
Thank you, precious friend

Answer 5

haha