The technique involves using a mammogram or ultrasound scan to locate the tumour, and then implanting a tiny magnetic marker or ‘seed’. The aim is that this device will guide the surgeon to ...
"It measures the direction of the magnetic field where you are, and it enters your position into the World Magnetic Model software to tell it what the magnetic field should look like. And then ...
"The current behaviour of magnetic north is something that we have never observed before," says global geomagnetic field ...