Remember back to the days of the 80s when these were banned in school and were confiscated on a regular basis. No scientific stuff here, just a plain and simple old fashioned calculator with a seven segment display 學校 復古 數學 舊的計算機
This is a weird picture I drew in inkscape with an interesting line experiment. My mom suggested the title. 白 瞳孔 的 十二個腿蜘蛛的白色瞳孔