Now, touch the first object with the magnet to see if your prediction is correct. Continue making predictions and testing each object. The paper clips, jar lid, and nail are probably magnetic. The ...

This superconducting magnet can do more than attract paper clips. It could unlock energy sources that could free humans from ...

They test three different magnets and measure the distance that each magnet is able to attract a paper clip. To make the test fair, they use the same ruler and paper clip throughout. This short ...