Dalton is a distinguished British chemist, physicist, born poor, living conditions are harsh, but he did not thereby give up on themselves, 15 years old when they left home to fend for themselves in to a school principal as an assistant 12 years, while work, while reading, wrote a "midnight side sleep, at dawn," the motto to motivate yourself. Through hard work, accumulated a great deal of scientific knowledge, 28-year-old found the gas partial pressure law, the creation of the Law of multiple proportions and the "Dalton's atomic theory", proposed atomic weight of the table. His outstanding contribution has been highly praised by Engels as "Father of Modern Chemistry."

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