The most powerful electromagnetic radiation the Earth has in three areas of the spectrum:
1) the reflected radiation in terms of spectral composition fully corresponds to the radiation of the Sun, the maximum of which is 0.5 μm;
2) intrinsic thermal radiation with a maximum in the region of 10 μm;
3) radio emission from numerous radio and television stations. Earth is a bright radio source in the planetary system.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.