1. Bacteria   William Harvey   Anton Von Leeuwenhock   Neels H. D. Bohr   Christian Barnard   Hint Half-n-half Clue   2. Magnesium   Sir Fredrick Grant Banting   Louis Pasteur   Sir J. J. Thompson   Sir Humphry Davy   Half-n-half Clue   3. Principles of Geometry   Michael Faraday   Euclid   Karl Wilheim Scheele   Johan Kepler   Half-n-half Clue   4. Sodium   Anton Von Leeuwenhock   Michael Faraday   Ronald Ross   Sir Humphry Davy   Half-n-half Clue   5. Theory of Relativity   Sir J. J. Thompson   Sir Humphry Davy   Albert Einstein   Sir Fredrick Grant Banting   Half-n-half Clue   6. Neptunium   Henry Cavendish   Enrico Fermi   Sir J. J. Thompson   Hans Christian   Half-n-half Clue   7. Calcium   Sir Humphry Davy   Sir Fredrick Grant Banting   Alexander Fleming   Wilhelm K. Roentgen   Half-n-half Clue