1. Power Loom   Andre-Marie Ampere   Johann Gutenberg   Edmund Cartwright   H. W. Seeley   Hint Half-n-half Clue   2. Hovercraft   Andre-Marie Ampere   Evangelista Torricelli   H. W. Seeley   Christopher Cockerell   Half-n-half Clue   3. Printing Press   G. Ferdinand Von Zeppelin   Sir Isaac Pitman   Dr. William Stokes, Rene Laennec   Johann Gutenberg   Half-n-half Clue   4. Rabies Vaccine   G. Ferdinand Von Zeppelin   H. W. Seeley   Louis Pasteur   Gottlieb Daimler   Half-n-half Clue   5. Transistor   Bardeen, Shockley, Brattain   Sir Isaac Pitman   Andre-Marie Ampere   Alessandro Volta   Half-n-half Clue   6. Laboratory Gas Burner   G. Ferdinand Von Zeppelin   Robert Wilhelm Von Bunsen   Bardeen, Shockley, Brattain   Louis Pasteur   Half-n-half Clue   7. Vaccination   Edward Jenner   John Napier   Alessandro Volta   Sir Isaac Pitman   Half-n-half Clue