Kepler space telescope

The Kepler space telescope was launched by NASA to discover Earth-like planets orbiting other stars

B-17 Flying Fortress (USA, 1938)

The ´Flying Fortress´ was developed for the United States Army Air Force by Boeing

Supermarine Spitfire (United Kingdom, 1938)

Spitfire was a legendary British single-seat military aircraft used in World War II.

RT-2PM Topol Intercontinental ballistic missile (Soviet Union, 1985)

A mobile, nuclear-capable ballistic missile developed at the end of the Cold War.

Radial engine

Radial engines are used primarily in aeroplanes and helicopters.

Medieval farmhouse

Farmhouses in the Middle Ages were simple, single-storey structures built from earth, mud and wood.

Polynesian family settlement (Samoa, 15th century)

The architecture of traditional Samoan family settlements reflect the unique culture of their inhabitants.

Dromedary

The dromedary is an indispensable animal for inhabitants of the deserts.

Nitrous acid (HNO₂)

One of the oxoacids of nitrogen. Colourless, moderate acid with a pungent odour, that exists only in aqueous solution.

Phosphorus pentoxide (P₂O₅)

A compound formed as white smoke during the combustion of phosphorus.

The Madara rider

A rock relief located in Northeast Bulgaria, probably carved at the end of the 7th century.

Colour vision deficiency

The inability to differentiate certain shades of colour is called colour vision deficiency.

Hubble Space Telescope

The Hubble Space Telescope orbits outside the distorting influence of Earth´s atmosphere.

Hexagonal metallic lattice

Metals forming hexagonal metallic lattices are rigid and difficult to machine.

Sulphurous acid (H₂SO₃)

Colourless, moderate acid, only known in aqueous solution.

Levels of biological organisation

This animation presents levels of biological organisation from the level of the individual organism to the level of cells.

Face-centred cubic metal lattice

The face-centred cubic metal lattice allows the closest fit of metal atoms.

Continental drift on a geological timescale

The Earth's continents have been in constant motion during the history of the planet.

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