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| The Wheel |
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| Discovery of Fire |
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| The Automobile |
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| Airplane |
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| Electricity |
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| Anesthesia |
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| Compass |
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| Cotton Gin |
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| Democracy |
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| Mobile Phone |
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| Eye Glasses |
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| Glass |
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| Gun Powder |
 |
| Ink |
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| The Internet |
 |
| Light Bulb |
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| The Nail |
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| Oil Refining |
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| Computer |
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| Optical Fiber |
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| Paper |
 |
| Penicillin |
 |
| Prozac |
 |
| Radio |
 |
| Refrigeration |
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| Telephone |
 |
| Remote Controller |
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| The Printing Press |
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| The Steam Engine |
 |
| Transistor |
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| Television |
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| Video Tape |
 |
| Writing |
 |
| Assembly Line |
 |
| Chocolate |
 |
| Radar |
 |
| Abacus |
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