or log in
The animation shows the way forces act on wheeled vehicles and vehicles with runners.
A hot air balloon is a balloon aircraft in which is lifted by hot air.
This animation explains the most important characteristics of waves through sound waves.
Direct action pumps and suction pumps are among the simplest water pumps.
Find out how to move the straws without touching them, using the phenomenon of...
The three important laws describing planetary motion were formulated by Johannes Kepler.
Newton, one of the greatest physicists, has laid down the basics of mechanics. In this...
The length of the metal frameworks of bridges change when the temperature changes.