The most familiar type of mirror is the plane mirror, which has a flat surface. Curved mirrors are also used, to produce magnified or diminished images or focus light or simply distort the reflected image.
The first mirrors used by people were most likely pools of dark, still water, or water collected in a primitive vessel of some sort. The earliest manufactured mirrors were pieces of polished stone such as obsidian, a naturally occurring volcanic glass.
I Believe that mirrors are one of the most useful enventions ever, 'cause it can provide us our image, in the way we may take care of our stile (this applies mainly to womans). But this isn't the only application for mirrors in cars for example is also important to help the driver (and more...).
So mirrors have a lot of functions, and we can conclude that in some way they make our life easier.
No comments:
Post a Comment