Register | Login
Attackpoint - performance and training tools for orienteering athletes

Discussion: Seismic realignment

in: blairtrewin; blairtrewin > 2021-04-05

Apr 6, 2021 5:53 AM # 
When did the change in the earths magnetic field occur which resulted in the at least 15 degree shift in the MN lines on Gumble ?

Please login to add a message.