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Democritus Of Abdera developed the atomic theory. He elaborated the idea that matter consisted of atoms having physical size and shape which constantly moved in a void and interacted in different ways.
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Cleopatra VII experimented with poisons; influencing alchemist.
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William Gilbert propounded the theory that the earth was a giant loadstone with north and south magnetic poles.
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Issac Newton developed the theory of matter and he studied gravitation and motion and then developed the law of gravity
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Robert Boyle experimented in pneumatics he rejected the accepted definition of matter and he proposed Boyles Law
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Benjamin Franklin experimented with electricity. He introduced the terms positive and negative and he showed that electricity could magnetize and demagnetize iron needles
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Charles Goodyear developed a process for vulcanization of rubber.
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Albert Einstein published a paper that explained the photoelectric effect which provided the foundation for quantum theory and resulted in the invention of the photoelectric cell.
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He discovered that there is countless galaxies exist beyond our own Milky Way galaxy.
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In case of a surgery or a traumatic injury, scientists perfected means of a safe blood storage
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World health organization announced that the disease know as small pox had been completely eradicated worldwide
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The complete genetic blueprint of the human dna.