This video of Hungarian brothers (Barnabas & Sebestyen) is about balance. It was originally made as a new year salutation, which is made clear at the end of the video. We often encounter basic balance tests on the internet, but the visual experience, the formal solutions, the symbols and Bach's msuic from the music box lift up the beauty of physics to an artistic level. The total effect is beyond the scope of natural science.
Image by: LedoAttila