1. Promote cell canceration, abnormal hormones, massive loss of calcium ions, dementia, abnormal pregnancy and abnormal production.
2. As long as the temperature of all objects in nature is above zero, they constantly transfer heat to the outside world in the form of electromagnetic waves. This way of transmitting energy is called radiation. The energy released by an object through radiation is called radiant energy, or simply radiation.
According to the different effects of radiation on matter, people divide radiation into ionizing radiation and non-ionizing radiation. Ionizing radiation includes cosmic rays, X-rays and radiation of radioactive substances.
Extended data
Details of radiation
1. Radiation refers to the transmission of energy in the form of waves or subatomic particle motion. Radiation energy radiates linearly in all directions from a radiation source.
2. Radiation is emitted in the form of electromagnetic waves and particles (such as alpha particles and beta particles). Radio waves and light waves are electromagnetic waves. Their propagation speed is very fast, and the propagation speed in vacuum is the same as that of light waves (3×10.8 m/s).
3. Visible light also belongs to radiation, which can be generally divided into ionizing radiation and non-ionizing radiation according to its energy level and the ability to ionize substances. This term is usually used for ionizing radiation.
Ionizing radiation has enough energy to ionize atoms or molecules, but non-ionizing radiation does not. Radioactive substances refer to substances that can emit ionizing radiation. There are three main types of ionizing radiation: α, β and γ radiation (or rays).
References:
Baidu Encyclopedia: Radiation