In order to keep the bricky appearance of the train engine intact, [Robert] hollowed out a few cheap imitation LEGO bricks to house the electronics. He also cut out slots for JST connectors ...

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 ... to push the train up to speed ...

Here, you'll find the best Amazon Spring Sale Lego deals we've seen ahead of the event. Be sure to keep checking back, as we'll update this page as soon as new deals go live. Best ...