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Franklin discoverd that there was electricity in lightning bolts Picture to google
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John Dalton scientifcally grounded the atomic theory of matter. Dalton also lectured about his discoveries and published them in a book, A NEW SYSTEM OF CHEMICAL PHILOSOPHY. Picture to google
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Sturgeon invented the electromagnet
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Meneleev started the periodic table and put the elements into seven groups.
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Joule explained and showed that heat is part of energy
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Hertz discovered radio waves
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Thomson discoverd the electron. Picture to google
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Ernest Rutherford won the nobel prize in 1908 "for his investigations into the disinteration of elements, and the chemistry of raidoactive substance".
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Bohr made a modern model of the atom based on quantum mechanics.