Equipment: A compass, iron filings, a current carrying solenoid and a 40 Amp power supply. What it does: The compass shows the direction of the field lines in and around the solenoid. The iron filings ...

Sprinkle iron filings evenly in and around the solenoid. Hold down the power supply button to activate current. Tap the Plexiglas frame with your knuckles, a screwdriver, or other tool to help the ...

The world's largest superconducting solenoid magnet has reached full field. Weighing in at over 10,000 tonnes, the CMS experiment's magnet is built around a 6-metre diameter, 13-metre long ...