3 inventions

 Computer: The first computer was called 'Z1'. It was invented by Komrad Zuse in 1936. Its weight 1000 kilograms. The first company was called 'ABC computers'.





                             






Light Bulb: Was invented by Thomas Edison in 1879. Its the most used appliances. This invention change the world totally.

Fire: This invention was invented in the prehistory. It was used for warn the animals, watch during the nights...