1. Steam Engine (condenser)   Samuel Morse   Michael Faraday   Fahrenheit   James Watt   Hint Half-n-half Clue   2. Microphone   Michael Faraday   Sir Alexander Graham Bell   Thomas Alva Edison   Elisha G. Otis   Half-n-half Clue   3. Vulcanised Rubber   Charles Goodyear   Alfred B. Nobel   John Logie Baird   Thomas Alva Edison   Half-n-half Clue   4. Waterproof Rubber   Michael Faraday   Thomas Alva Edison   Charles Macintosh   Orville and Wilbur Wright   Half-n-half Clue   5. Movie Projector   John Logie Baird   Rudolf Diesel   Sir Alexander Graham Bell   Thomas Alva Edison   Half-n-half Clue   6. Lightning Conductor   Samuel Morse   Thomas Alva Edison   Benjamin Franklin   Charles Goodyear   Half-n-half Clue   7. Safety Razor   Charles Goodyear   John Logie Baird   King C. Gillette   Michael Faraday   Half-n-half Clue