Grey November

Captain Greybeard was challenged to make a Lego Mindstorms Submarine.First he made a normal hull out of technic beams and placed the NXT sealed in a plastic bag.
With the bag he could watch the display and control the buttons needed... and the cables for the motors and sensorsare sealed at the seam of the bag to sael it tight
it is also possible to charge the NXT after sealing
Here is the result of his work..
Captain says.."I built two submarine, Grey November Mark I and Grey November Mark II ...
The first sub is equipped with a compas sensor and a color sensor (for signaling it's state to the outside) and the second one with a compas sensor and an IRseeker.
When my subs returned from Portugal I want to try that the second sub will follow the first automatically. For that purpose I will attach an IR ball to the first submarines!"

Microcuber

David Gilday, the creator of the Cubestormer has created a new cube solver, the Microcuber.
It is arguably the world's first robot that can solve the Microbic, a miniscule version of the Rubik's Cube.