Photography is the science, art, application and practice of creating durable images by recording light or other electromagnetic radiation. Either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film.
Photographs are amazing. Through photographs, we preserve history - our child's first steps, a decaying landscape, or rare and endangered animals. We use photographs to recall the first steps on the moon, the inauguration of a new president, the lifting of a flag on a far-away hill during war. Mothers laboriously decorate large scrapbooks just to protect their precious memories. Photographs evoke the essence of places we have not been, we perhaps will not return to, and should never forget.