NEXT OBSERVATIONS. “Anders Celcius and Olav Hiorter in 1747 discovered the temporal coincidence between compass needle variations and bright auroral displays. Comparing simultaneous magnetic variations in London and in Uppsala they further realized that the phenomena they were studying were related to processes in the planetary scale.”
https://link.springer.com/article/10.12942/lrsp-2007-1
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022