This French-born student of Huygens modified Huyge
This French-born student of Huygens modified Huygens' apparatus with the substitution of compressed  steam for gunpowder, and developed a steam cycle to ensure continuous motion of the pistons. However,  his insufficient knowledge of engineering prevented him from developing any practical applications for  his invention.
This French-born student of Huygens modified Huygens' apparatus with the substitution of compressed  steam for gunpowder, and developed a steam cycle to ensure continuous motion of the pistons.
Denis {Papin}