(25 -Augst-1819) James watt dǝ shi malum (Mathematics and engineering) bǝ . Shi giyi Steem engine burozu sutulu amma shima zaman yero kalaksu. Loktun nzun Steem engine gade nbəji amma James watt ka,an nzu badizina dǝ dusowa kowono . Zaman kirma yero Steem engine dǝ kalakkano . The James watt Steem engine bǝ lan botin. Karno 18th and 19th century bǝ lan kam shi yeyi bawo. Kam kasidiwa rintama zauro kasadin nzu filezaina nasha engine bǝ lan (Newcomen engine) zaman yero kalaksu (Unite and power) bǝ lan kirmaro botin (The watt) bǝ lan notunaman nabta (horse power) beǝ lan kara