Ye samundar mein pehle teen machine bane thi . Woh machine { bahut hi purani thi. Yeh machine kaam karti thi sach . Machine ka first use hua Machine ki taarikh khula hai {Dese mahine ke naam jana hai Kal dese mahine ka din hai Parv Yeh din ekdam khaas hai kyunki yeh din hain naamdaa