M-Block - superordinary robots by Boston Dynamics M-Block - the work of art created by engineers at Boston Dynamics, John Romanishin in particular. The bot itself is essentially a cube with a built-in engine that does 20,000 revs a minute, with magnets on the sides. It can move whichever way it wants and attach itself to its “brethren”. Together, they can form any complex structure. A chair or a ladder, for example. In fact, such consttructions can include over a million of these bots.