Which parts connect the eyepiece to the revolving nosepiece of the microscope?

What was the first ever man-made object to leave earth's atmosphere? What cloud is thin high and feathery? How big is Spica? How does the rocket land on the earth? Which planet crashed into Venus? How long would it take to get to Sirius in a spacecraft traveling at 120 km per second? What was the name of the astronaut that did not fly on the Apollo 13? What is the top speed of space ship? What was the Apollo Project? When was the micro scope invented? Why do people use model rockets? What does the bear and star mean on the California's flag? Is the sentence in the morning just before sunrise a fragment or sentence? Why is the tundra called the land of the midnight sun? What are the colors of each month? Why should you not look at the sun? Why is it dangerous to look at the Sun during an eclipse? How far can sound travel in space between astonauts? When it rains can you see the stars? Was it Aristotle or Galileo who relied on experiments?