Lego brand manufacturers tiny inter-locking plastic bricks, gears, and mini-figures among other components to build miniature models of any object imaginable; by and for kids. Most commonly constructed objects being cars, buses, planes, trains, buildings, castles, sculptures, ships, and spacecrafts including mechanical robots. The Lego group was incorporated by Ole Kirk Christiansen in Billund, Denmark in 1949, originally invented in 1932. The advanced series in the line-up of traditional bricks is the Lego Technic series. The Technic series offers complex movable parts for constructing advanced mechanical models. Introduced in 1977 as Expert Builder, the concept was later christened Technic in 1986. The series involves gears, axles, pins, beams, etc. for constructing the basic assembly or skeleton of the structure. Specially introduced pneumatic pieces, electric motors and pneumatic compressors help to maneuver relatively heavy objects. The series recently introduced the Bionic set capable of automated functionality. The Technic series introduced the facility to construct the structures mainly out of beams and pins rather than the traditional bricks in 2000. Further modifications or evolution of the series witnessed the introduction of Lego Mindstorms. Mindstorms is an innovative concept involving construction and programming of Lego constructs much akin to robotic programming. The Mindstorms series successor, Mindstorm NXT due for launch in August 2006, would further advance the level of creative intelligence and learning for kids. The Technic series saw the introduction of the controversial 'Studless' design bricks. Though the bricks were backward compatible and fit easily into the older bricks, fans strongly opposed the deviation from tradition. Studless beams and bricks by their concept and design allowed construction of complex models, even the vertically challenging ones. In 2006, The Mobile Crane Technic model 8421 has the re-instated studded bricks appearing back into Lego series following consumer demand.