1. Aeroplane   Thomas Alva Edison   Sir Alexander Graham Bell   Fahrenheit   Orville and Wilbur Wright   Hint Half-n-half Clue   2. Television (mechanical)   John Logie Baird   Thomas Alva Edison   King C. Gillette   Elisha G. Otis   Half-n-half Clue   3. Vulcanised Rubber   James Watt   Sir Alexander Graham Bell   Benjamin Franklin   Charles Goodyear   Half-n-half Clue   4. Electric Generator   Samuel Morse   James Watt   Michael Faraday   Benjamin Franklin   Half-n-half Clue   5. Lightning Conductor   Thomas Alva Edison   Michael Faraday   Benjamin Franklin   John Boyd Dunlop   Half-n-half Clue   6. Steam Engine (condenser)   James Watt   Thomas Alva Edison   John Logie Baird   Charles Goodyear   Half-n-half Clue   7. Telephone   Sir Alexander Graham Bell   Michael Faraday   Benjamin Franklin   Thomas Alva Edison   Half-n-half Clue