What do you see when you look at a light bulb through a bird’s feather?
| November 14, 2020 | Education
The pen is a diffraction grating, so if we look at a light bulb through the pen, we see rainbow colors.
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.