The video explains the concepts of magnetic, electric, and gravitational fields using simple demonstrations. It shows how iron filings reveal the magnetic field around a magnet, how charged ...

Iron filings can be fun to play with, although we don’t think we’ve ever had any this fine. If you prefer your magnetic field visualizations to be higher-tech, we have the answer.

Make sure to get fine iron filings specifically meant for science experiments - don't use iron powder meant for other purposes as it may contain impurities. Important Note: When ordering magnets ...

You can see a magnet's magnetic field by scattering tiny iron filings around it. The iron filings form a pattern that reveals the lines of the magnetic field.

Here's a gorgeous photo of iron filings orienting themselves along the magnetic field lines generated by a strong current in a straight wire that has been wound into a coil.

Magnetic field. A bar magnet induces magnetism in pieces of iron, revealing the presence of its magnetic field spreading from one pole to the other. (Image credit: Getty Images) Small filings of ...

When the magnet is moved around, the iron filings follow showing the lines of force from the magnet. To create an electromagnetic field, Lindsey cut 235 coat hangers and tied them together.

This allowed the team to detect and measure the unseen magnetic field lines, much the same way iron filings can reveal the magnetic field around a magnet.

Iron filings dropped on a sheet of paper and given a good shake move about haphazardly without settling into any particular arrangement. If this process is repeated with a bar magnet placed ...