I wonder what a 737 fitted with a nuke that is exploded at its max altitude would do to our electric grid?
Nothing, I would think - it might affect an area about 50-100 miles wide. A typical effective EMP needs to be at least 250 miles up.
“I wonder what a 737 fitted with a nuke that is exploded at its max altitude would do to our electric grid?”
At airline altitudes it would directly impact only a 100 mile radius, and would have to be very big to even do that.
A 737 at max altitude ? It would do practically nothing to no one. At about 40,000 feet, or about 8 miles up, even a 1 megaton bomb wouldn’t touch Earth with its fireball, which is about 1.5 miles radius. There would be some wind from the blast but not much else.