> Even if a four legged table's legs are all perfectly equal so their tips lie in the same plane, that perfectly will be thwarted by an uneven floor. Unless yo

> Even if a four legged table's legs are all perfectly equal so their tips lie in the same plane, that perfectly will be thwarted by an uneven floor. Unless you're able to rotate it: https://www.scientificamerican.com/article/strange-but-true-turning https://www.scientificamerican.com/article/strange-but-true-...