Zachary noticed the change in his mother's expression and immediately explained to Mrs. Thompson what an electromagnetic pulse was and the kind of harm it could cause.
In fact, an electromagnetic pulse, as a natural disaster, can indeed cause enormous destruction when powerful, yet it basically poses no direct harm to the human body when considered minor.
Putting it plainly, an electromagnetic pulse is essentially an attack targeting precision instruments.
To give a simple example, let's compare gasoline vehicles with electric vehicles.
For a purely mechanically operated gasoline vehicle, even when directly hit by an electromagnetic pulse, at most, something like the radio in the control panel might be destroyed or even explode, but there would be no significant damage to the overall condition of the vehicle.
