A demonstration of nearby planets, stars and galaxies.
Bones of the upper limbs form the pectoral girdle and the arms.
Deforestation has a negative impact on the environment.
The legendary city of the Mayan-Toltec Empire was located on the territory of present-day Mexico.
This Pacific island is famous for its unique monolithic human figures.
This animation presents some animals and plants that lived between the Devonian and Permian periods (358-299 million years ago).
Humans have 4 types of teeth: incisors, canines, premolars and molars.
This animation demonstrates Sir Isaac Newton's three laws of motion that laid the foundation for classical mechanics.
The Wright Flyer was the first successful powered, heavier-than-air aircraft, designed and built by the Wright brothers.
While generators convert mechanical energy into electrical energy, electric motors convert electrical energy into mechanical energy.
Eukaryotic cells with nuclei measuring only a few micrometers may contain nearly 2 meters (6.6 ft) of DNA, coiled multiple times.
The animation shows the traditional Japanese wooden townhouse, the machiya.
This exciting and colorful game is designed to develop spatial perception. You can check your solutions using isometric views.
Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.
The Benz Patent-Motorwagen is widely regarded as the first vehicle propelled by an internal combustion engine.
The popular model of the American automobile factory was the first mass-produced car in the world.
These Paleolithic statuettes probably symbolize fertility and prosperity.
Waves play an extremely important role in many areas of our lives.
This animation introduces the studies of astronomers and physicists whose works fundamentally changed our view of the universe.
Several ingenious instruments have been invented over the centuries to help in navigating the seas.