Super magnet reveals even silent subs
ELECTRONS GET NO RESISTANCE
A quantum magnetometer consists of a ring made of a superconductive material – i.e. it has no electrical resistance.
In a superconductive material, electrons will pair up instead of being repelled. They move about, generating electricity without any resistance.
FLUCTUATIONS CAUSE RESISTANCE
Fluctuations of Earth’s magnetic field accelerate the electrons, destroying the superconductivity. So, electric resistance arises.
According to Ohm’s law, electric resistance also produces voltage, which can be measured very accurately. The voltage reveals if a submarine lurks below.