Nighttime.
Dugu Bo set up camp nearby, relying on his formidable presence to ensure that no reckless ten-thousand-year-old soul beasts dared to approach.
Meanwhile, Sun Ming used two ice mirrors to demonstrate to the two of them the light-transmitting effects of concave and convex lenses.
Concave lenses scatter light, while convex lenses concentrate it, but adjustments are needed in terms of position and thickness.
"In the academy, those who can't see distant objects are nearsighted, meaning the transparent layer at the pupil of their eyeball bulges outward, causing light to focus closer. Therefore, they need to wear concave lenses that can spread the light outward."
Sun Ming explained to the two, "Conversely, those who can't see nearby objects need to wear convex lenses, adjusting the imaging in the brain. These are my current observations and deductions."
