World's smallest Steam Engine has been Made in Germany

German Scientists made world's smallest steam engine claims to have driven. Microscope scale model of the one hundred ninety five year old Robert Stirling designed, built on the style. This model has been used in laser piston place. Scientists of the Max Planck Institute for Research, University systems and is published in the journal called Nature Physics. There is a useful exercise and is small, so we thought why not test this theory on the microscope stage to.