Dot Physics on MSN

Using a magnetic compass to calculate current in a wire

Using a magnetic compass to calculate the current in a wire. Learn how magnetic fields, compass deflection, and basic electromagnetism principles connect in a practical physics experiment. #MagneticFi ...
The Nature Network on MSN

How animals navigate without maps or technology

While we’re busy faffing about with satnavs and getting lost if our phone battery dies, the rest of the animal […] ...