Aperture is controlled by 'diaphragm' in optics.
Answer: you can take a far away view or zoom in just like a microscope. You have to stand in different areas in different positions and lean forward if you want a close-up view and walk backwards and further away for a wide view. A miscrope can be used the same way just by turning it or adjusting the lens and the view.
Explanation:
<span>The main difference between FBI agents Fox Mulder and
Dana Scully is that Mulder believes in the existence of aliens, and Scully doesn't.
Namely, the greatest passion in Mulder's life is to find the truth about aliens,
and that is the most important motivation in his engagement as FBI agent. His
motto is „I want to believe“, and he truly believes that his sister was abducted by aliens when he was young boy. On the other hand, his partner Scully is a
scientist, and she does not believe in aliens. She is repeating that one should
have the real scientific evidence first before he could claim that there is an extraterrestrial life. Mulder is irrational, and Sculy is rational. Another
difference between them is that Scully believes in God, and Mulder is an atheist.</span>
