Seafloor map

The boundaries of tectonic plates can be seen on the seafloor.

Hubble Space Telescope

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

USS Tarawa LHA-1 (1976)

From the 1940s, the increasingly large aircraft carriers became the masters of the oceans.

Sewage treatment plant

Treated sewage water can be used in agriculture and industry.

Ferrous metallurgy (intermediate)

Raw iron is produced from iron ore in iron smelters.

Voyager space probes

The Voyager space probes were the first man-made objects to leave the Solar System. They gather data about outer space and carry information about humanity.

House without carbon-dioxide emission

The design and structure of modern houses play an important role in environmental protection.

Bireme (ancient oared warship)

A bireme is a type of ancient warship, with a characteristic pointed bow and two decks of oars, used by many armies.

Fat-tailed scorpion

The fat-tailed scorpion is one of the world's most dangerous scorpions.

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 Channel Tunnel

The Channel Tunnel is a 50.5 km long railway tunnel between the United Kingdom and France, beneath the English Channel.

Oil refinery

The products of oil refining include diesel oil, petrol and lubricants.

Hexagonal metallic lattice

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

Venus

Venus is the 2nd planet from the Sun, the brightest object on the night sky (after the Moon).

Sulphurous acid (H₂SO₃)

Colourless, moderate acid, only known in aqueous solution.

Face-centred cubic metal lattice

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

Meteorological instruments

This animation demonstrates instruments used to examine atmospheric phenomena.

Satellite types

Satellites orbiting the Earth can be used for civilian or military purposes.

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