Today we will see that it distinguishes us as humanity.
THE FIRE
THE WHEEL
THE ALPHABET
WRITING
Writing is recognized as one of the greatest inventions of humanity,
which function is the perpetuation of oral language along the time.
Writing evolved in three stages.
First it appeared in the form of drawings that represented objects and
were called pictograms.
Then ideograms were born as signs or set of signs that represent situations or contexts but not sounds.
And the final stage is when the first scriptures appear implemented by
the Sumerians in the fourth millennium before Christ.
This writing was called cuneiform, because its characters had form of
wedge.
It is this writing that allows the creation of the first literary texts.
STEAM ENGINE
Video y presentación en power point
THE LIGHT BULB
SPACE EXPLORATION
Space exploration is the ongoing discovery and exploration of celestial structures
in outer space by means of continuously evolving and
growing space technology. While the study of space is carried out mainly
by astronomers with telescopes, the physical exploration of space is conducted both
by unmanned
robotic space probes and human spaceflight.
The first successful orbital launch was of the Soviet unmanned Sputnik 1 ("Satellite 1") mission on 4 October 1957.
The first successful human spaceflight was Vostok 1 ("East 1"), carrying 27-year-old Russian cosmonaut Yuri Gagarin on 12 April 1961.
The first
artificial object to reach another celestial body was Luna 2 in
1959. The first automatic landing on another celestial
body was performed by Luna 9 in 1966. Luna 10 became
the first artificial satellite of the Moon.
The first manned landing on another
celestial body was performed by Apollo 11 on 20 July 1969.



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