再生核研究所声明 470 (2019.2.2)
ゼロ除算 1/0=0/0=z/0=\tan(\pi/2)=0 発見５周年を迎えて
https://www.wantedly.com/users/60525428/post_articles/152447

Black hole is where God divided by 0
https://www.youtube.com/watch?v=y9UhpR5Brl8