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3500 BCE
The wheel
Created before 3500 a.C., qualifies as a fundamental invention for the human development, since from it could be manufactured machinery and transportation among other things, the inventors were the Mayans and the Aztecs -
3400 BCE
Plow
it is a tool used to open hollows in the earth to sow seeds. appeared there by 3400 in the villages of Mesopotamia -
1000
The polvora
Created in the tenth century by the chineses, it was used to propel the projectiles of weapons nowadays used for fireworks. that be inroduced in 1200 in europe -
1400
The print
This mechanical method of producing texts and images generated a cultural revolution. appeared between 1000 and 1400 in China where it was used with rice paper. -
The steam machine
For the 1698 it made its great appearance and was very used during the industrial revolution for the movement of the machines -
The anesthesia
Since its introduction in 1799 it had several variants regarding the analgesics that were incorporated. the ether dominated the market until 1960. -
The telegraph
The German scientists Gauss and Weber installed, in 1833, a thousand-meter telegraph line to connect the university with the astronomical observatory of Göttingen, a town in which they worked -
The combustion engine
At first when it was created in 1860 by Nicolaus Otto they still did not have compression and instead they worked with air and blown fuel. -
The penicilin
It was discovered by Ernest Duchesne in 1897 in France revolutionized medicine and gave a new approach to the production of antibiotics against infections -
The transistor
Este dispositivo electrónico, creado por William Bradford Shockley en 1947, es un semiconductor de energía. Hoy en día se puede ver en electrodomésticos, radios y televisores.
