I just knew it's Sabine's video (I watched it last night) when I saw the name R. P. Kerr. I love her video too, though so far the only thing that I've learned f

I just knew it's Sabine's video (I watched it last night) when I saw the name R. P. Kerr. I love her video too, though so far the only thing that I've learned from it is how to properly pronounce the word Einstein :DDDD Anyway here's another of her video which might be related to the one linked above: https://www.youtube.com/watch?v=-HHv3T4UHec https://www.youtube.com/watch?v=-HHv3T4UHec