Benjamin Franklin (Benjamin Franklin).Background: statesman, writer and scientist, was born in Boston, Massachusetts 1706 city state Ju Ma, USA, died in 1790 included age 84 years.Important works: a study to find out the truth about power. In the air, found the charge in the air and found that the electricity in the air causes lightning, thunder. Lightning is introduced using lightning protection lightning protectionName: Edward Jenner (Edward Jenner).Background: the doctors and scientists, British born in 1749 at Berkeley County Gloucester Shea, died in 1823 included age 74 years.Important works: the discovery of vaccination against smallpox.Name: Sir Humphrey Davy (Sir Humphry Davy).History: British chemist born in 1778 City Pan San patch, regional Cornish man, died in 1829 City Geneva included age 56 years.Important works: find gas tri modulus auto side for anesthesia for surgery, discover the nature of heat, discover the separation of water with electricity. To separate water gas two kinds are hydrogen and oxygen. Discover the element sodium and potassium, trace elements and other 10 type artificial lamp box. Davey: Davy lamp (lamp) for use in coal mines.
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