weather definition

Weather describes all the atmospheric conditions we can find in a specific place at a specific time. It changes day by day.

THE STEAM ENGINE

INCLINED PLANE

https://www.youtube.com/watch?v=tvLDkNdDrqY

SIMPLE MACHINES

Steam engines

Look at how a steam engine works. Don't you find it amazing!!!
https://www.youtube.com/watch?v=-RKmPxM83cchttps://www.youtube.com/watch?v=-RKmPxM83cc

NEOLITHIC PERIOD

PREHISTORY