Can you build a working submarine from LEGO blocks? Well, I certainly couldn't, but the guy behind Brick Experiment Channel did it. Most of it is LEGO parts, some are homemade, and some are just convenient, like the syringe. This submarine is controlled by Raspberry Pi and PID. He even used power tools made of LEGO blocks to make some parts! This is quite clever- the syringe is for ballast control, so that the submarine's depth can be adjusted. This gadget even has laser sensors, a camera, and remote control. It also has a cute minifig captain inside.
If you want to skip ahead to see the. submarine work, that starts at about three minute in, but I was quite impressed to see the quick build. It first gets tested in an aquarium, then goes to a swimming pool, and finally out to a creek. If you want to build your own, the complete proiect is laid out in a series of articles here. -via kottke
Commenting on Neatorama will earn you NeatoPoints!