States and cities of the USA

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

Ara Pacis Augustae (Rome, 1st century BC)

The Altar of Peace, commissioned during the reign of Augustus, was one of the most important works of ancient Roman art.

Church of St John at Kaneo (Ohrid, 13th c.)

The Orthodox church, situated on a picturesque cliff, was named after John the Apostle

Archimedes’ screw (3rd century BC)

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

Cromwell´s Ironsides (17th century)

The Ironsides were members of the Parliamentarian cavalry formed by Oliver Cromwell during the English Civil War.

Medieval Christian king

Medieval kings were typically depicted sitting on their thrones, wearing a crown and the Royal regalia.

The development of automobiles

Automobiles have evolved a lot since the late 19th century.

Medieval towers and bastions

The structure of fortresses developed together with military technology.

Macedonian phalangite (4th century BC)

Soldiers of the ancient Macedonian Kingdom were dreaded warriors.

Zither

A zither is one of the typical instruments of Hungarian folk music, played by strumming or plucking the strings.

Wine region

Wines of the Tokaj wine-growing region are well known worldwide.

Eurasian Avars (8th century)

The Avars established a stable empire in the Carpathian Basin between the 6th-8th centuries.

Beta-D-ribose (C₅H₁₀O₅)

A crystalline compound found in nucleic acids, coenzymes, nucleotides and nucleosides.

Maltose (malt sugar) (C₁₂H₂₂O₁₁)

A disaccharide formed by the joining of two alpha-D-glucose molecules.

Methane (CH₄)

The first member in the homologous series of alkanes.

Propane (C₃H₈)

The third member in the homologous series of straight-chain alkanes.

Methanol (methyl alcohol) (CH₃OH)

The simplest saturated alcohol. A highly toxic compound, easily confusable with ethanol.

Ethanol (ethyl alcohol) (C₂H₅OH)

The best known alcohol, important in the food industry.

Glycerol (propane-1,2,3-triol) (C₃H₈O₃)

A triol that is often used as an ingredient of creams and ointments.

Boron trifluoride (BF₃)

Colourless, heavier-than-air gas with a pungent odour. It forms white fumes in moist air.

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