[물리] Which is faster * Brachistochrone Curve

[물리] Which is faster * Brachistochrone Curve
C4D4U

Which is faster?  First write in the comments and then start the video.
For me the topic brachistochrone is still very new. But I am fascinated by what is behind it. If you haven't heard of it yet, you should take a closer look.
https://de.wikipedia.org/wiki/Brachis...
https://google.com/search?q=brachisto...

https://youtu.be/TIopneBToLQ

https://heisme.skymoon.info/article/SuggInfo/1633  

내가 소리 없는 음악을 들으며 보이지 않는 풍경을 바라 보고 있을 때, 생각 없는 사색에 빠져서 다가 올 시간을 회상하다가 있지 않을 누군가를 그리워한다 [하늘-선(禪)]