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400 BCE
HUMANS LEARN TO USE FIRE
The main sources of ignition before humans appeared were lightning strikes. Our evidence of fire in the fossil record (in deep time, as we often refer to the long geological stretch of time before humans) is based mainly on the occurrence of charcoal. -
300 BCE
the water pump
It is the machine that transforms energy, applying it to move water. This movement is normally upward. The pumps can be of two types "volumetric" and "turbo-pumps" -
100 BCE
paper
Etymologically the word paper comes from Papyrus, a medium used by the Egyptians to carry out their writing. -
30 BCE
BOW AND ARROW
The bow and arrow is a ranged weapon system consisting of an elastic launching device (bow) and long-shafted projectiles (arrows). -
5 BCE
THE WHEEL IS INVENTED
In its primitive form, a wheel is a circular block of a hard and durable material at whose center has been bored a hole through which is placed an axle bearing about which the wheel rotates when torque is applied to the wheel about its axis. -
4 BCE
HUMANS BEGAN USING
The Bronze Age is a prehistoric time for humans; specifically, the time when humans began to use a metal called bronze (obtained by mixing tin and copper). -
2 BCE
ferrous metallurgy began
Iron and steel metallurgy is the technique of treating iron ore to obtain different types of iron or its alloys such as steel -
2 BCE
ABACUS
The abacus is an instrument used to carry out simple arithmetic operations -
1 CE
Galilesos telescope
Thanks to the telescope - since Galileo Galilei used it in 1610 to observe the Moon, the planet Jupiter and the stars - human beings were finally able to begin to know the true nature of the celestial bodies that surround us and our location in the world. universe. -
janssen microscope
He is said to have built a 9x instrument, which is sometimes claimed to have been made with the help of his father -
cement
Cement is a binder formed from a mixture of calcined and subsequently ground limestone and clay, which has the property of hardening after being in contact with water. -
electric generator
An electrical generator is any device capable of maintaining a difference in electrical potential between two of its points (called poles, terminals or terminals), transforming mechanical energy into electrical energy. -
radio, tesla
The invention of the means of communication commonly known as radio, although it was generally attributed to Guillermo Marconi in the 1890s, spanned several decades since its theoretical foundations were established in 1873, until the existence of the radioelectric phenomenon was proven and finally developed the techniques necessary for its use in the wireless transmission of signals. -
mobile phone
A mobile phone or cell phone is a portable phone that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area -
DVD
DVD is a type of optical disc for data storage.
