What is chroscopy?

Why did Anakin get his robotic arm? Why you can see darkness in microscope? How many earh days equals one moon day? How fast in MPHdoes the earth travel around the sun? What are the largest stars in the HR Diagram? With the progression of space mining under way would it be feasible to use specialized industrial 3D printers to turn the raw materials into structures in space? Did Apollo 11 take 3 days to get to the moon? What is the temperature at 55000 feet? How much fuel does a single rocket launch use? What is a form of water falling from the sky and what is it measured with? How many sunspots per year? What does When its dark enough you can see the stars mean? What are the phases in the allocation cycle in government contracting? What is a dicentagon? Are the sun moon and stars elements? What is the radius of Betelgeuse? How is a digerroo made? What is the best IED observation points? Blemish on the surface of the sun? When did Aristotle develop the geocentric?