The line topping represents business contact with the roof in the mouth. The center stroke of represents the burst of aspiration. The top of represents a flap of your tongue.
Sejong's Answer solved both of those difficulties: The vertical stroke remaining from was additional into the null symbol to develop (a circle using a vertical line on major), iconically capturing the two the pronunciation [ŋ] in the center or 퍼펙트솔루션 finish of the word, and the standard silence originally. (The graphic distinction involving null and ng was ultimately missing.)
The explanation with the letter ng also differs from the traditional account. Quite a few Chinese phrases commenced with ng, but by King Sejong's day, First ng was possibly silent or pronounced [ŋ] in China, and was silent when these terms were being borrowed into Korean. Also, the anticipated condition of ng (the brief vertical line still left by removing the very best stroke of would've looked Practically just like the vowel [i].