To answer your question, we have to talk about light. This will not be an easy thing to do. About 100 years ago, the world’s smartest scientists even argued about what light really is. They usually argued for a lot of years.
Light is definitely a bunch of tiny things that scientists call “photons”. These little things can travel unbelievably quickly.
How shortly? Well, imagine this: photons can go around the whole world more than seven occasions in just one second.
When these photons attain our eyes, we see them as light. The more photons there are, the brighter the light.
Photons can come in all the colors of the rainbow. They also hold energy which can turn into heat. This is why it feels warm when the sun shines.
But, not all light is the same. Blue and violet photons both have more energy than red ones, for example.
Now here is a weird thing: there are some types of light which might be invisible!
For instance, ultraviolet (UV) light, which has even more energy than blue and violet light, is invisible.
Sunlight incorporates a few of this highly effective UV light. Because it has a lot energy, it could cause a number of damage, like sunburn, paintglow australia in case you get an excessive amount of of it on your skin.
One other invisible type of light is infrared light. Infrared means “less than red”, so this light has even less energy than red light.
Making paint glow
Many light sources, just like the Sun or an old light bulb in your rest room, glow because they are really hot. Normal glowing, like that of the Sun and a light bulb, requires objects to be really hot for us to see it.
As you already know, you can see glow-in-the-dark paint, however if you touch it, it is just as cold as the bedroom wall. So, the glowing of the paint have to be different to the glowing of a light bulb.
The paint has a special type of glowing called “luminescence” and it will possibly solely be created from a few types of material. One such material is what scientists call “luminescent phosphors”, and this is what makes your paint glow. Scientists make luminescent phosphors in the lab by mixing particular chemicals collectively, and then add them to the paint. The paint is then sold to factories and producers who put it on toys, stickers, and even inside colouring pens.
While some things glow all the time, just like the sun, glow-in-the-dark paint should be “told to glow”. Just like your dad and mom must cost their phones every night time to make them work, these supplies must be “charged” earlier than they begin glowing.
Actually, the charging of your glow-in-the-darkish paint is done by different types of light. The invisible UV light with numerous energy can cost the special phosphors in your paint and make it glow in your bedroom at night.
There are completely different types of glow-in-the-dark paint. One type may be charged through the day and can glow for hours at midnight at night. The charging that occurs through the day, for example by sunlight, is stored in the paint for some time, just like in the battery of a phone.
This type of paint is called phosphorescent. The opposite type, called fluorescent paint, solely glows while an invisible UV light is turned on to charge it.