An earthquake is one of the most devastating natural phenomena.
Bones of the upper limbs form the pectoral girdle and the arms.
The Doric, Ionic and Corinthian order of columns are different in size and ornamentation as well.
This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.
This animation explains active and passive transport processes occurring through cell membranes
The Benz Patent-Motorwagen is widely regarded as the first vehicle propelled by an internal combustion engine.
This Pacific island is famous for its unique monolithic human figures.
The legendary city of the Mayan-Toltec Empire was located on the territory of present-day Mexico.
A demonstration of nearby planets, stars and galaxies.
This animation demonstrates the structure and operation of CT scanners.
According to Homer’s epic, Odysseus’ Stratagem caused the loss of Troy.
This animation demonstrates Sir Isaac Newton's three laws of motion that laid the foundation for classical mechanics.
The animation shows the traditional Japanese wooden townhouse, the machiya.
While generators convert mechanical energy into electrical energy, electric motors convert electrical energy into mechanical energy.
Physical properties, as well as the flora and fauna of the ocean change with depth.
The animation demonstrates the different flower types of angiosperms.
Built in Neo-Byzantine style, this Orthodox cathedral is one of the symbols of the Bulgarian capital city.
Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.
This animation presents the main types of leaves and the differences between monocot and dicot leaves.
The French Montgolfier brothers were the first pioneers of flying.