Brilliant
David Bebee/Waterloo Region Record, via Associated Press
Scientists Find Trigger for Northern Lights
Researchers hope the finding will be a step in developing reliable forecasts of geomagnetic storms that can disrupt both satellites in orbit and power grids on the ground.
power grid
The noun has one meaning:Meaning #1: a system of high tension cables by which electrical power is distributed throughout a region
Synonyms: power system, grid
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