سلام دوستان خواهشنا یکی صفحه۸۰خلاصه کنه تو چند خط پرسش دارم فقط سریعتر

human knowledge develops with scientist hard work. some of these scientists did not have easy lives.thay never felt weak when they were studying.there are great stories about scientists and their lives.one such story about Tomas edison.as a Yong boy Edison was very interested in science.he was very energetic and always asked question.sadly Yong Edison lost his hearing at the age of 12.he did not ettend school.edison was famous for doing thousand of experiment to find answer to problems.edison had more than 1000inventions and was very successful at the end of his life.but they key to thier success is their hard work and belife in themselves. اینا بخش های مهمش بود!