Professor Dallas Trinkle and colleagues have provided the first quantitative explanation for how magnetic fields slow carbon atom movement through iron, a phenomenon first observed in the 1970s but ...

This video demonstrates how you can detect and draw a magnetic field using some iron filings, a compass and a magnet. You’ll notice that the arrows on your lines always point from the north to the ...

The history of science is full of examples when a 3D physical model led to a big discovery. But modelling something that’s actually invisible can be tough. Take magnetic fields – iron filings on a ...