0
Markers that show under a black light are known as "black light reflective markers", "UV black light reactive", "invisible ink markers", or "black light reflective ink". There are different manufacturers of these items typically available in law enforcement shops, online stores, and sometimes in art stores/departments.
What else can I help you with?
What is the name of the glow powder mixed into nail polish that makes it glow under black lights?
Ultraviolet Light Sensitive Phosphorus Powder.
What is the name for floating markers in the ocean?
Floating markers in the ocean are called buoys.
What is the name of the light brown bug with black spots that you found in your garden?
The name of the light brown bug with black spots that I found in my garden is a ladybug.
Is artificial black light colorless?
No, black light is a common name for Ultra-Violet light. You cannot see UV radiation so some simple people have referred to it as black light.
What are black holes and why do they have this name?
A black hole is a region of space from which nothing, including light, can escape. It is called "black" because it absorbs light that hits it, reflecting nothing.
How do you get things to glow under a black light?
Black light is only black because very little of the light the lamp produces is in the visible spectrum. Most is actually ultraviolet (UV) light. The frequency of such light is just a little higher than violet (hence the name ultraviolet). The human eye cannot detect UV light, so black light is mostly invisible to us (you might see a faint violet glow however). UV light can cause certain materials to glow due to an effect called Fluorescence. This entails a material absorbing light at a certain frequency (e.g. UV light) and retransmitting it at another frequency, for example visible light. We cannot see UV light but we can see the retransmitted visible light causing the object to glow. Black light theaters make good use of such materials, but in many countries the paper money also contains fluorescent materials. That is why people working behind the counter in shops will sometimes hold money under a UV lamp; counterfeited money might not have such security features and will thus reveal itself for the fake it is.
What is the name of the color produced by a mixture of green and blue light?
black
Who invented the black light?
Nobody. The black light is a trivial name for ultraviolet radiation which human eyes don't respond to. (shorter wavelenght than blue)
What was the name of the economic system the colonies lived under?
the black market
How did black holes in outer space get their name?
Since nothing, not even light, can escape black holes, they are invisible (so to speak). You can only see a black hole when it is sucking up light, since the object with light looks like something is pulling it away.Actually, there isn't much imagination in this. Black holes are named as such because they are, basically, holes in the universe which emit no light.
How did blackholes get their name?
black holes have such great gravity that nothing, not even light can escape them. That is why they were named "black holes".
Where does the black hole get its name?
The term "black hole" originated from a 1964 article titled Black Holes in Space by journalist Ann Ewing. A black hole is what is left of an object that has completely collapsed under the force of gravity. Within a certain radius the gravity is so strong that not even light can escape, making the object completely black.
