The idea of installing an engine on a pair of roller skating is not new but it has evolved over the centuries. In 1877, an inventor designed steam roller skates. In 1898, an army colonel had even written a memoir entitled "the next revolution in the means of military locomotion" where he recommended the use of motorized roller skates to move troops faster than the cavalry.
Since then, many inventor added thermal or electric motors to our dear companions ... nothing but reactors!
Thanks to biskra roller