The ‘upright man’ used tools and could set fire.
The knee joint is made up by the femur, the tibia and the kneecap.
The Byzantine Emperor was the head of the Byzantine Empire, the direct continuation of the Roman Empire.
The capacity of data storage devices have increased at an incredible rate during the past decades.
One of the most important monocot crops.
Ports must provide necessary infrastructure and services for industry and marine transport.
Observatories are often built at high elevations to minimise the effects of atmospheric turbulence
This animation demonstrates how solar energy can be utilised.
Careful tooth brushing is an important part of oral hygiene.
Widespread heterotrophic unicellular organisms with constantly changing shapes
ATP is the main source of energy for cells.
The masterpieces of ancient Greek potters are important archaeological artefacts.
Two meshing gears transmit torque during their rotational motion.
The phosphorus cycle describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
Regular dice can be used for solving statistical and probability exercises.
The oxygen cycle describes the movement of oxygen within its three main reservoirs.
This animation demonstrates the anatomy of amphibians through the example of a common species of frogs.
A fjord is a long, narrow inlet with steep sides, created in a valley carved by glacial activity.
The last Ice Age ended about 13 thousand years ago.
A geyser is a spring characterised by intermittent discharge of water and steam.