A fuel cell provides environment-friendly electric energy produced by the chemical reaction between oxygen and hydrogen.
This animation explains the technology of shale gas extraction.
Electric current can be generated by rotating an armature loop in a magnetic field.
One of the greatest archaeological finds of the 20th century was the tomb of the Egyptian pharaoh.
One of the largest marsupials.
Keeps were typical buildings in the Middle Ages, also built independently from castles.
Enzymes are protein molecules catalysing biochemical reactions. Their activity can be regulated.
The face-centred cubic metal lattice allows the closest fit of metal atoms.
More than one million people died in the WWII Nazi death camp located in present-day Poland.
The Greek fleet owed their success to their good tactics and their fast and easily manoeuvrable ships.
HMS Dreadnought revolutionised battleship-building in the 20th century.
The animation offers a summary of the history of aviation from the Middle Ages.
Nuclear propulsion was first used by the US Navy for powering submarines in the mid-20th century.
This animation demonstrates how an escalator works.
Ancient Egypt was called the ‘gift of the Nile’, since the river played an important role in the rise of Egyptian civilisation.
Producing speech requires the synchronised operation of several cortical centres.
Metals forming hexagonal metallic lattices are rigid and difficult to machine.
The staggered conformation of ethane is more stable than the eclipsed conformation.
One of the oxoacids of nitrogen. Colourless, moderate acid with a pungent odour, that exists only in aqueous solution.
Wind power stations convert the kinetic energy of the wind into electricity.