Two friends went on a campaign – a short-sighted and a far-sighted one. They forgot the matches at home, but the day was sunny. Which friend’s glasses will help light the fire?
Glasses for nearsighted people are concave. He will not be able to light a fire, since the concave lenses do not focus the rays. You can light a fire with lenses designed for farsightedness. In this case, the rays can be focused so that they are at one point.
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.