1 Fire:
The ability of produce and control this heat and light
source was gotten by the human species 790000 years ago in the Stone Age when
the people lived in caves.
2 Wheel
It’s a mechanic piece that turns on an axis. The
transport and the pottery was very improved because of this invent and it was
invented in 3100 BC.
3 Steam engine
It’s a heat engine that moves a wheel using steam. It
was invented in XVII by a Spanish inventor and the Industrial Revolution was
started because of that.
4 the imprint
It works printing texts and images very quickly so the
books and newspapers can be bought by all the people because of the invention
of this. It was invented in the XV century by Johannes Gutenberg.
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