Regarded as one of the biggest developments in the history of humans was the invention of the wheel which took place thousands of year ago. Scientists have been toiling for a number of years for designing of molecular machines equipped with wheels and a group of European researchers have been able to operate the first molecular rack with a pinion of 1.2nm in diameter. The molecular wheel is expected to revolutionize machinery built on nanoscale. On earlier occasions too nanowheel rotation has been claimed but it was not demonstrated. Up till now manipulation of single molecules with STM had resulted in hopping motion of the molecules but research conducted by German and French researchers can be regarded as the first instance of rolling molecular wheel. Dr. Leonhard Grill stated: This is on one hand fascinating as it shows that rolling, a motion that is of fundamental importance in the macroscopic world, is also possible at the atomic scale. On the other hand it opens the way to design a new class of nanomachines that are equipped with wheels. The research has been focused on single functionalized molecules on surface and a paper on the research has been published too.