Which outcome occurred when flawed lenses were manufactured historically using medieval glassblowing techniques?

💡 Explanation

Reduced telescope image sharpness happens because imperfections created during lens manufacturing caused light to scatter via DIFFRACTION, which blurred image features; therefore focusing quality decreased, rather than aberrations improving.

• Which risk increases when the pressure seal in a 19th-century steam engine weakens due to wear?
• Which risk increases if an Inca quipu's cords deteriorate?
• In 18th-century shipbuilding, which consequence occurred if differential shrinkage was not accounted for between planking timbers of various moisture contents?
• Which outcome occurred at high altitudes from miscalculation on the Inca quipu?
• Which limitation arose influencing 18th-century man-of-war ship construction under heavy broadside recoil?
• Which attribute limited the size of bronze castings produced via lost-wax casting?