Just a few numbers and even one equation, sorry: The heart is a magnetic dipole, and the field of a magnetic dipole decays as 1/r³. Therefore, if it can be detected at a distance of 5 cm, then at a distance of 50…
Just a few numbers and even one equation, sorry: The heart is a magnetic dipole, and the field of a magnetic dipole decays as 1/r³. Therefore, if it can be detected at a distance of 5 cm, then at a distance of 50…