In terms of relative length of units, a yoctometre ranks as follows: Planck length yoctometre zeptometre. A yoctometre is 1/1000 of a zeptometre (1 zeptometre (zm) = 1,000 yoctometres). The yoctometre,is the distance light travels in about:1Ã·2.99Ã10 35 seconds.
Engines of various sorts have been invented over the last two or three centuries. 1  In 1698, English military engineer, Thomas Savery, invented and patented the first crude steam engine, based on Denis Papin's Digester (pressure cooker) of 1679.
First known gasoline powered engine was by Siegfried Marcus in 1870 in Vienna. A more successful gasoline engine was made by Daimler and Maybach, with Otto in 1879. The earlier engines mentioned by other folks were generally conceptual (i.e. not really invented yet), and/or used lighting gas (like natural gas), not gasoline.