It took Green two years to fly from the edge of Sky City to its center—the Sky Mechanical Holy Tower!
Green's understanding of mechanical knowledge was basically still at the superficial cognitive stage of a wizard apprentice. He had barely come into contact with it at all, so it was simply impossible for him to gain any meaningful wizard knowledge by coming to Sky City.
Green had crossed the Wizard Continent without regard for the journey for only one purpose: the Microscopic Eye for the Face of Truth Phase Six Project.
This fell within the realm of mechanical wizard knowledge. Green truly had no way to start learning it from scratch, so he could only come personally to the Sky Mechanical Holy Tower and commission a professional mechanical wizard to create a Microscopic Eye that met his standards.
Of course, with wizard essence now so abundant, Green would also take the opportunity to modify and upgrade Spyshadow Starfall here. He had already firmly grasped the basic spacetime knowledge needed to travel through the Endless Void.
The microscopes circulating throughout the Wizard Continent were generally optical microscopes.
The magnification of optical microscopes had a limit, because light elements in the Endless World possessed light-wave wavelengths.
So-called light-wave wavelengths existed because light itself appeared intermittent to the human eye, with gaps between it. Thus, optical microscopes had a magnification limit. As far as Green knew, that limit was 1,750 times.
Then what factors affected the wavelength of light waves in a microscope?
Light-wave wavelengths were affected by three factors in total. The least influential were gravitational magnetic fields and refraction loss.
Generally speaking, when wizards used microscopes to observe the microscopic world, they did so at close range. At such a close distance, the light naturally suffered little influence from gravitational magnetic