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1) He changed the concept of elements from states of matter to definite types of matter and showed that elements can't be altered, and that things are made up of descrete elements.
2) a painter by trade, he invented the first means of electronic communication over long distances.
3) He invented the idea of aniline dyes
4) He invented the process by which harmful bacteria are killed by heating so that foods are made safe
2) a painter by trade, he invented the first means of electronic communication over long distances.
3) He invented the idea of aniline dyes
4) He invented the process by which harmful bacteria are killed by heating so that foods are made safe