The white “Thor Guard” devices along Atlantic beach predict lightning strikes before they happen by analyzing the ...

[Kristen] gets into RF grounds, DC grounds ... You do want earth grounding for lightning protection, but what most of us think of as ground is just a convention. Need a -9V battery?

The D.C. area rung in the work week on Monday with scattered storms that had the potential to bring lightning ... International airports faced ground delays. Between 1.5. and 3.5 inches of ...