Children had better not buy it (in your mouth, because you don't know what the ingredients are, you don't have them, most of them are toxic). It's best not to buy anything with liquid in it.
In fact, there are many luminous watches, luminous stickers and luminous ornaments. Just pay attention to them Not necessarily, depending on the dazzling effect of your jewelry? How to buy it in an informal place is likely to radiate too much, which is really good for your health, so you must be careful with this thing! Cheap ordinary luminous powder is phosphor.
However, radioactive "uranium" can also be light, but many countries do not have the technology to manufacture and transform "uranium", which is an important element of uranium atomic bombs. Its preciousness can be imagined!
Also, no matter what accessories should be taken off before going to bed, even the bra should be taken off, not to mention the absolute accessories are harmful:
Jewelry will produce radium radiation, although it is weak, but it will accumulate over time, and a large amount will lead to adverse consequences, such as skin cancer.
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Dark fluorescent substances, which can be called luminescent materials, emit light. Luminous materials used by human beings have a long history, such as disks used in watches. They made a luminous watch.
Luminescent materials are divided into self-luminous and phosphorescence. The basic component of self-luminous materials is that radioactive substances will not absorb energy from external sustainable light or darkness, even during the day. It is precisely because it contains radioactive substances that its use needs to be more restricted, and the treated waste is a big problem. Light-storing luminescent materials rarely contain radioactive substances, and there are no restrictions on their use, but they rely on absorbing external light emission and light to ensure sufficient foreign exchange reserves. Another type of luminescent material has the defect of insufficient luminous brightness. For example, zinc sulfide has been used as afterglow phosphor before, but the emission time is too short and the brightness is not enough. Therefore, in the future, * * * is mixed with a huge radioisotope 147, and the luminous effect is ideal, but the participation of radioisotopes. Does not meet the requirements of environmental protection.