Ym-hayrn

Ta'n ym-hayrn ny leigh do-vrishey najoor. T'eh dellal lesh y bieauaghey rish y cheilley eddyr daa red, er bun y foddid eddyr oc.

Leigh ym-hayrn Newton:

$F=G\cdot {\frac {m_{1}\cdot m_{2}}{r^{2}}}$

'Sy chooish shoh, G = shassooagh yn ym-hayrn:

$G=6.6742\cdot 10^{-11}{\frac {N\cdot m^{2}}{kg^{2}}}$