The researchers are using magnets positioned in trench of the track as a kind of magnetic gear to push against. A series of electromagnets on the Lego vehicle ride in that track. The can be ...

Building a Magnetic-Driven Lego Submarine Learn how this RC submarine uses magnetic couplings to transmit torque through its walls without drilling holes ensuring no leaks Watch the full process ...

The [Brick Experiment Channel]’s latest build, a submersible made almost entirely from Lego, is one such project ... this time around he built clever magnetic couplings. The couplings transmit ...