This is a big one for social workers, because many of us work in crisis situations. Employers want to make sure you can handle stressful situations and take the time for self-care. They donât want to hire someone who will burn out quickly.
This is what makes the image look smaller. The biggest refracting telescope in the world is located at the Yerkes Observatory of the University of Chicago at Williams Bay, Wisconsin. It has an objective lens thats 1.02 meters (40 inches) across, and its total power is 195x. Reflecting telescopes, on the other hand, dont use lenses at all.
Focal length, power and magnification. Larger focal length lenses do have less optical power, as you have stated. A single lens, however, does not form a telescope. You need two lenses, e.g. an objective lens and an eye lens with respective focal lengths $f_\text{eye}$ and $f_\text{obj}$.