From the post "Pound To Rescue Permittivity" dated 30 May 2016,
\(\varepsilon_o=\cfrac{1}{2c^2ln(cosh(\pi))}=\cfrac{1}{2*299792458^2*ln(cosh(\pi))}=2.2704e(-18)\)
Should the \(\sqrt{3}\) factor also be applied?
\(\varepsilon_o=2.2704e(-18)*\sqrt{3}\)
\(\varepsilon_o=3.9325e(-18)\)
In case which, compared to the quoted value of \(\varepsilon_o=8.8542e(-12)\), we have
\(\cfrac{8.8542e(-12)}{3.9325e(-18)}=2.251969e6\)
Interestingly it is 2.20462 pound to a kg.
Maybe the pound is natural units and imperial; that \(\varepsilon_o=3.9325e(-18)\) is per pound instead of per kg.
\(\varepsilon_o\) can be redefined!