Himeji Castle

Located close to Osaka, the Japanese castle is also called the White Heron because of its...

Samurai

The primary duty of these Japanese warriors was to serve their feudal lords, even at the...

Milestones of sculpture

The animation shows five outstanding works in the history of sculpture.

Meiosis

Our gametes are haploid cells produced from diploid cells by meiosis, a special type of...

Mitosis

Mitosis is the process by which a eukaryotic cell divides into two cells and the number...

Hotspots

Hotspots are areas of the Earth´s crust where magma often rises to the surface and causes...

Zeppelin airship, LZ 129 Hindenburg

A Zeppelin is a type of rigid-framed airship.

English oak

This animation shows how trees change throughout the seasons, demonstrated by the example...

Daguerreotype

The first commercially successful technique of photography was invented by the French...

Elementary particles

Matter is made up by quarks and leptons, while interactions are carried by bosons.

Formula 1 racing car

Formula 1 is the highest class and most popular type of motor racing.

Deep-sea hydrothermal vents

A hydrothermal vent is a fissure in the planet's surface through which geothermally...

Viking stave church (Borgund, 13th century)

A wooden church built in the 12th-13th centuries, the best preserved of Norway´s stave...

Offshore natural gas extraction, Norway

The Troll A is an offshore natural gas platform, the largest offshore platform ever...

How does it work? - Gearbox

In transmission systems, the engine torque is modified by reducing or increasing...

Optical illusion

The information gathered by the eye is misinterpreted by the brain.

Three-dimensional Cartesian coordinate system

3-dimensional Cartesian coordinate system with illustrations and exercises that develop...

Synaptic transmission

Neurons transmit electrical signals via chemical and electrical synapses.

Bones of the upper limbs

Bones of the upper limbs form the pectoral girdle and the arms.

Operation of river locks

River locks make rivers with great level differences safe for boating.

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