-
3500 BCE
The wheel
is a circular object that is used to make easy the movement of heavy things -
200 BCE
lighthouses
the egiptians create a tower and its used as a gigant light for them to know where are they -
105
the paper
is a small peace of leafe that is used to write things -
600
Windmills
are big towers with four blades -
800
gunpowder and fireworks.
they are used to entertainment and to kill persons -
1000
eyeglasses
they are made to help the people that have illnes in eyes -
1000
piano
is a big instrument -
hot-air balloon.
a air transport that uses hot air as fuel -
battery
is a small silinder that contains energy -
electric arc lamp
is electric way of make light
