1. Electronic Computer   Louis Pasteur   G. Ferdinand Von Zeppelin   Dr. Alan M. Turing   Kirkpatrick Macmillan   Hint Half-n-half Clue   2. Refrigerator   Kirkpatrick Macmillan   Dr. William Stokes, Rene Laennec   James Harrison, Alexander Catlin   David Bushnell   Half-n-half Clue   3. Laboratory Gas Burner   Robert Wilhelm Von Bunsen   Bardeen, Shockley, Brattain   Roger Bacon   Leo H Baekeland   Half-n-half Clue   4. Bicycle   Kirkpatrick Macmillan   Dr. Alan M. Turing   Z. Janssen   Gottlieb Daimler   Half-n-half Clue   5. Ball-Point Pen   John J. Loud   Sir Isaac Pitman   Sir Frank Whittle   Johann Gutenberg   Half-n-half Clue   6. Transistor   Sir Frank Whittle   Bardeen, Shockley, Brattain   Karl Benz   James Harrison, Alexander Catlin   Half-n-half Clue   7. Stethoscope   Leo H Baekeland   Dr. William Stokes, Rene Laennec   Otto   Sir Frank Whittle   Half-n-half Clue