| 7. PRINTING PRESS - invented in 1439 by the German Johannes Gutenberg,
this device in many ways laid the foundation for our modern age. It allowed ink to
be transferred from the movable type to paper in a mechanized way. This
revolutionized the spread of knowledge and religion as previously books were
generally hand-written (often by monks).
8. ELECTRICITY - utilization of electricity is a process to which a number of
bright minds have contributed over thousands of years, going all the way back to
Ancient Egypt and Ancient Greece, when Thales of Miletus conducted the earliest
research into the phenomenon. The 18th-century American Renaissance man
Benjamin Franklin is generally credited with significantly furthering our
understanding of electricity, if not its discovery. It's hard to overestimate how
important electricity has become to humanity as it runs the majority of our
gadgetry and shapes our way of life. The invention of the light bulb, although a
separate contribution, attributed to Thomas Edison in 1879, is certainly a major
extension of the ability to harness electricity. It has profoundly changed the way
we live, work as well as the look and functioning of our cities.
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