A bizarre "Rule of Four" has been identified in the basic structure of the majority of inorganic materials—and scientists are stumped as to why. The pattern is found in the so-called "unit cell" of ...
Do celebrities really die in three? Actor Malcom-Jamal Warner, singer Ozzy Osbourne and professional wrestler Hulk Hogan died in late July, prompting Google search around the “rule of three” to spike.