They are only noticeable under black lights, unless you are looking for it and look really closely, then you can see light ink. The tattoo only last for about 6 months.
Some black-light tattoos show up in daylight. It depends on how your tattoo is done. Some are done to appear as regular tattoos during the day, and then they look different under black light.
NO. Tattoos hurt because of the needle guns that puncture the skin to leave ink behind. Black light tattoos do not hurt anymore or less than regular tattoos. Their ink is what glows in black light, and it is very similar to regular ink.
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Yes!
Very vaguely, but you need a black light to see it to its full effect.
30 year leaves no scars.
It really depends on the quality of work from your artist. If you go to a good professional they can be far from noticeable, however, if you get too dark tattoo under too light of eyebrow, it could really be a horrific outcome.
No it would not since it is only white pigment. There are black light tattoos available using UV ink but results are mixed, and most people report loosing the black light aspect of it within about a year. The ink is supposed to be barely visible in most light, but some people report a yellowing of the ink after a period of time as well.
Red light Therapy may lighten tattoos that are red to orange in color, but it is not likely to and is not the typically used for tattoos. The other colors of a tatto should be unaffected while using Red Light Therapy
Light is attracted by gravity just as mass is. However, since light moves so fast the attraction is generally only noticeable around very massive, very dense objects such as black holes.
If you are not getting enough oxygen, you will get light headed and black out. Keep breathing during stretches.
From Wikipedia: "About a third of all diamonds will glow under ultraviolet light, usually a blue color which may be noticeable under a black light or strong sunlight." You can read more about this phenomenon, below.