Polymerisation of ethene

Polymerised ethylene is known as polyethylene, a type of plastic.

Gothic cathedral (Clermont-Ferrand, 15th century)

The cathedral named after the Assumption of Mary into Heaven is one of the gems of French Gothic architecture.

Sailing ships

Schooners, first built in the Netherlands in the 17th century, were mainly used as merchant ships.

Solar power station

Solar power stations convert solar energy into electricity.

Tidal power station

Tidal power stations utilise the daily fluctuation of the water level for producing electricity.

Generating alternating current

Electric current can be generated by rotating an armature loop in a magnetic field.

Platonic solids

This animation demonstrates the five regular three-dimensional (or Platonic) solids, the best known of which is the cube.

Junction

Entertaining and spectacular animation to practise orientation in space.

Cube (exercises)

Edges, diagonals and faces of a cube can be identified by its vertices.

Non-orientable surfaces

The Möbius strip and the Klein bottle are special two-dimensional surfaces with only one side.

Conic sections

The conic section is a plane curve that is created when a right circular cone is intersected by a plane.

Otto Lilienthal’s glider

The German engineer Otto Lilienthal was the first person to make successful flights with a glider designed by himself.

Fuel cell

A fuel cell provides environment-friendly electric energy produced by the chemical reaction between oxygen and hydrogen.

Shale gas

This animation explains the technology of shale gas extraction.

Medical conditions of the spine

Scoliosis is a medical condition in which a person's spine has a lateral deviation.

Time zones

The Earth is divided into 24 time zones. Standard time is the time used within time zones.

The skull and the spine

The two main parts of the central nervous system, the brain and the spinal cord are protected by the skull and the spinal column.

Road transport, articulated lorry

Articulated lorries play an important role in road transport.

Diversity of light-detecting organs

Several analogous types of eyes have developed independently through convergent evolution.

Soldiers of the American Civil War

The American Civil War was fought between the Confederacy and the Union.

Added to your cart.