2020-12-12

## history – Is $\pi^2 \approx g$ a coincidence?

The Question : 145 people think this question is useful In spite of their different dimensions, the numerical values of $\pi^2$ and $g$ in SI units are surprisingly similar, $$\frac{\pi^2}{g}\approx 1.00642$$ After some searching, I thought that this fact isn’t a coincidence, but an inevitable result of the definition of a metre, which was possibly