Saturn

Saturn is the second largest planet in the Solar System, easily recognisable by its rings.

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.

Reaction of hydrogen with oxygen

Knallgas is the mixture of hydrogen and oxygen. It will explode when ignited.

Archimedes’s military inventions (3rd century BC)

Archimedes was one of the most brilliant Greek scholars of ancient times, who made his mark with military inventions as well.

Leaning Tower of Pisa (14th century)

The medieval bell tower of the Cathedral of Pisa is the most famous leaning tower of the world.

Mycenae (2nd millenium BC)

The city with advanced culture was the first settlement in history to have a citadel.

Dissolution of NaCl

Common salt is dissolved by water: polar water molecules form a coat around the ions.

Melting and freezing

During freezing hydrogen bonds are formed between water molecules resulting in a crystal structure.

Ancient Roman siege engines

Ancient Roman conquerors had effective siege engines developed for attacking fortifications.

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.

Panthéon (Paris, 18th century)

The most important Neoclassicist building in France, completed in 1791, became the final resting place of many of France´s greats.

Cellulose (C₆H₁₀O₅)n

The building material of the cell walls and fibres of plants.

Teatro Olimpico (Vicenza, 16th century)

The first indoor theatre in modern history to be constructed according to the theatre-building codes of Antiquity was inaugurated in 1585.

North River Steamboat (Clermont) (1807)

Robert Fulton American engineer created the first operational steam-powered ship.

Ancient Roman military camp

As the Roman Empire expanded, military camps were established on the newly conquered territories.

Swallowsville

An entertaining animation to practise orientation using a map.

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