Thermometers

There are various types of instruments used for measuring temperature.

Administrative divisions of the Netherlands

This animation presents the provinces and provincial capitals of the Netherlands.

Glacier (intermediate)

A glacier is a large body of ice that forms from snow, and is in constant, slow motion.

Ragusa (Croatia, 16th century)

Today called Dubrovnik, this Croatian city is known for its spectacular architecture and beautiful location.

Cuboid

A cuboid is a polyhedron with six rectangular faces.

Robots

An entertaining game about different views of spatial objects.

Cube of cubes

An exercise about the regular hexahedron built from unit cubes to help deepen your knowledge of cubes.

Cube

This animation demonstrates the components (vertices, edges, diagonals and faces) of the cube, one of the Platonic solids.

Cylindrical solids

This animation demonstrates various types of cylindrical solids as well as their lateral surfaces.

Sharks

A group of fish characterised by a cartilaginous skeleton, well-known species include the great white shark and the great hammerhead shark.

Aurora cruiser ship (1900)

The name of the Russian armoured cruiser became well known during the October Revolution of 1917.

Woolly mammoth

Extinct proboscidea closely related to today's elephants, often hunted by prehistoric man.

SM U-35 submarine (Germany, 1912)

Submarines had an important role in naval warfare as early as World War I.

Seafloor map

The boundaries of tectonic plates can be seen on the seafloor.

V-2 ballistic missile (1944)

The German liquid-propellant rocket, developed during WWII, was the first known man-made object to reach space.

Axolotl

The axolotl, also known as Mexican salamander, is an amphibian species that keeps its gills even in adulthood.

Nitrogen cycle

Atmospherical nitrogen is bound by bacteria and used by living organisms in the form of various compounds.

The sense organs

Organs that detect signals of the environment or of the body and transmit them to the brain as nerve impulses.

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