1. Rabies Vaccine   Louis Pasteur   Nikola Tesla   Kirkpatrick Macmillan   H. W. Seeley   Hint Half-n-half Clue   2. Airship (rigid)   G. Ferdinand Von Zeppelin   Karl Benz   Robert Wilhelm Von Bunsen   John Napier   Half-n-half Clue   3. Bicycle   G. Ferdinand Von Zeppelin   William Siemens   Kirkpatrick Macmillan   Bardeen, Shockley, Brattain   Half-n-half Clue   4. Refrigerator   James Harrison, Alexander Catlin   Kirkpatrick Macmillan   Robert Wilhelm Von Bunsen   Nikola Tesla   Half-n-half Clue   5. Nylon   Christopher Cockerell   Lewis E. Waterman   Dr. Wallace H. Carothers   David Bushnell   Half-n-half Clue   6. Electric Battery   Sir Isaac Pitman   Leo H Baekeland   Kirkpatrick Macmillan   Alessandro Volta   Half-n-half Clue   7. Electric Flat Iron   Roger Bacon   Johann Gutenberg   H. W. Seeley   Edmund Cartwright   Half-n-half Clue