[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  

여행은 일상의 떠남입니다. 하지만 삶을 외면하려 떠남이 아닙니다. 오히려 마음을 다해 세상속에서 삶을 찾습니다 [하늘-삶의 여행]