“an “electromagnetic pulse” so big that it could have knocked out power, cars and iPhones throughout the United States.”
No......
Not to minimize a solar flares impact, but, a solar flare can impact the power grid only. It will not directly impact iPhones and cars.
It is not a “High-Altitude Electromagnetic Pulse” such as a nuclear explosion high in the atmosphere - which can impact electronics.
Not sure if I feel better or not. The lights go out but the NSA is still listening.
True, but what powers those wireless phone systems, Refineries, fuel delivery systems, water systems..........?
Hmm... I need to know that; we had that discussion here and I need good data.
Where’s a good reputable place to get information?
Have you read about the Carrington event? The EM energy was so intense that it caused fires from telegraph transmission lines to telegraph offices. Sure weren't any elecric power grids back in 1859. Apply this to any form of wiring, and realize what the impact will be to general electronics, their hardware, software, and associated controls. If you are an engineer, (as I), then you will realize how this will impact any form of manufacturing that employs computer controls.