Granary in the Indus Valley

Ancient Indians built huge, naturally ventilated storehouses.

States and cities of the USA

This animation demonstrates the states and largest cities of the USA.

Archimedes’ screw (3rd century BC)

The screw pump commonly attributed to Archimedes made irrigation much more effective

Clothing in ancient Egypt

Inhabitants of ancient Egypt wore characteristic clothes and jewellery.

Battle of Zama (202 BC)

Scipio’s Roman army defeated Hannibal’s Punic army in the battle fought during the 2nd Punic war in Africa.

Sputnik 1 (1957)

The Soviet-made satellite was the first spacecraft to be launched into outer space (in October 1957).

Light and shadow

By varying the position of the light source, you can examine the shades projected onto the planes of the coordinate system.

Tall buildings

Tall buildings are mementoes of human history and technological development.

Medieval towers and bastions

The structure of fortresses developed together with military technology.

Noah’s ark

According to the Bible Noah was ordered by God to build a large vessel to save his family and the animals from the flood

Russian Tsar Peter I with his wife

Influenced by Western Europe, the Tsar attempted to modernise the Russian Empire.

Sulphur (S₈)

An odourless, yellow, solid substance, the 16th most common in the Earth´s crust. One of the best known sulphur compounds is pyrite, also known as ´fool´s...

Oleic acid (cis-octadec-9-enoic acid) (C₁₇H₃₃COOH)

An unsaturated monocarboxylic acid. The molecule contains double bond in cis orientation.

Ammonia (NH₃)

Ammonia is a colourless gas with a characteristic pungent smell. Its solution in water is called ammonium hydroxide or household ammonia.

Nitrogen monoxide (Nitric oxide) (NO)

A colourless, heavier-than-air gas, an intermediate in the production of nitric acid.

Water (H₂O)

Water is a very stable compound of hydrogen and oxygen, vital for all known forms of life. In nature it occurs in liquid, solid and gaseous state.

Leonardo da Vinci’s inventions – Armoured car

The design for the armoured car features the most important military requirements: reliability, portability and great firepower.

Isoprene (2-methyl-1,3-butadiene) (C₅H₈)

Synthetic rubber is produced by the polymerisation of isoprene.

Added to your cart.