Saint Basil's Cathedral (Moscow, 16th century)

The church consecrated to Saint Basil was commissioned by Ivan the Terrible.


Capacitors store electrical energy in the form of electric charge.

Endocrine system

Glands of the endocrine system secrete hormones into the blood.

Shale gas

This animation explains the technology of shale gas extraction.

Ames room

An Ames room is a distorted room that is used to create an optical illusion.

Southern plantation with slaves (USA, 19th century)

Before the American Civil war the use of slaves on plantations was typical in the Southern states.

Types of soil (soil profiles)

This animation demonstrates different types of soil.

Hard disk drive

Computer hard disk drives are devices of magnetic data storage.


The archaeopteryx shows characteristics of both birds and reptiles. It is probably the ancestor of birds.

Male reproductive system

The reproductive system consists of organs which work together for the purpose of reproduction.

Roman gladiators (2nd century)

Gladiators were combatants who entertained audiences in fights against each other or wild animals in ancient Roman arenas.

Vought F4U Corsair (USA, 1944)

The Vought F4U Corsair radial-engined naval fighter was one of the most prominent American aircraft of the Second World War.

Common European viper

A species of venomous snakes widespread in Europe. Its bite is rarely fatal to humans.

Types of surface epithelium

Surface epithelia cover the external and internal surfaces of the body

Medical conditions of the spine

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

Tooth brushing

Careful tooth brushing is an important part of oral hygiene.

Female reproductive system (intermediate)

The reproductive system is a series of organs working together for the purpose of reproduction.

How does it work? - Mobile phone

This animation demonstrates how mobile phones work.

Wankel engine

A type of rotary engine of high efficiency

Types of synovial joints

Synovial joints can be categorised by the direction of movement they allow.

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