Engels, 2014, in Nature.
European robins lost their magnetic compass inside a city.
The cause?
AM-band electromagnetic noise, 50 kHz to 5 MHz, ordinary urban hum.
Shield the lab in aluminum, the compass came back. remove it, gone again.
The first clean proof that man-made EM noise blinds a biological magnetic sense.
Published in the world's top journal. buried for a decade.
People ask "how can WiFi hurt you, the power levels are so low"
FLIP IT
How can earth's magnetic field run your biology when it's only 25-65 microtesla?
because your cells are THAT SENSITIVE.
Magnetite crystals in your brain detect field variations smaller than a millionth of a Tesla
Mitochondrial nano motors spin on electromagnetic principles at molecular scale.
The question was never "Is WiFi strong enough to harm you"
The question is "is your biology sensitive enough to notice"
it noticed everything for 4 billion years.
it's still noticing.