Mail coach service (Great Britain, 18th century)

Before the emergence of motorised vehicles, letters and parcels were delivered by horse-drawn mail coaches.

Planets, sizes

The inner planets of the Solar System are terrestrial planets while the outer planets are gas giants.

Egyptian Pyramids (Giza, 26th century BC)

The Giza Necropolis is the only one of the Ancient wonders still intact.

How do seas shape the Earth's surface?

Seawater, as an external force, plays an important role in shaping coastlines.

Ancient Egyptian house

An average Egyptian dwelling consisted of regularly arranged rooms.

The anatomy and functions of the liver

The liver is a vital organ that plays an important role in the digestion of fats, detoxification and metabolism.

Electric motors

Electric motors are present in many areas of our everyday lives. Let's learn about the different types.

Windmill

Machines converting the energy of wind into useful forms of power were already in use in the Middle Ages.

Observatory

Observatories are often built at high elevations to minimise the effects of atmospheric turbulence

Surface tension

Surface tension is the property of a liquid that allows it to obtain the smallest surface area possible.

The evolution of data storage

The capacity of data storage devices have increased at an incredible rate during the past decades.

Edible nightshades

Many of the most important food crops we consume belong to the family of nightshades.

Desktop computer

This animation demonstrates the structure and most important peripherals of desktop computers.

Comparison of real fruits and pseudofruits

The pericarp of real fruits develops from the carpel, while the pericarp of pseudofruits develops from other parts of flowers.

Hunebeds

These special dolmens located in present-day Netherlands were built about 5,000 years ago.

Hussite wagon fort

The Hussites mastered the use of war wagons in the 15th century.

Optical instruments

A wide variety of optical instruments are in use today, ranging from microscopes to telescopes.

Maize

One of the most important monocot crops.

Oil tanker

Oil tankers appeared in the late 19th century; today they are among the largest ships.

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