| A | B |
| Oil Drilling Drake | made the discovery and production of this raw material cheaper increasing kerosene supply |
| Light Bulb Edison | Successfully used bamboo as a filament |
| Created alternating current | Made the distribution of electricity cheaper and more available |
| Electric Sewing Maching | caused the major growth of the textile industry |
| Refrigerator Westinghouse | households were able to have this appliance when electricity became widely available |
| Telegraph Morse | The development of this code revolutionized the use of the telegraph. |
| transcontinental railroad | completion enabled coast to coast travel and shipping |
| Time Zones | The syncronization of this was caused by the expanding rail system |
| Bessemer process | enabled steel production to become cheaper through mass production |
| Henry Ford | Used the assembly line to mass produce automobiles |