Human activity increases the greenhouse effect and leads to global warming.
Matter is made up by quarks and leptons, while interactions are carried by bosons.
Formula 1 is the highest class and most popular type of motor racing.
The information gathered by the eye is misinterpreted by the brain.
In transmission systems, the engine torque is modified by reducing or increasing rotational speed.
The Troll A is an offshore natural gas platform, the largest offshore platform ever built: it rises about 170 metres above water level, weighs 656,000...
A Zeppelin is a type of rigid-framed airship.
This animation demonstrates the development of the axe throughout archaeological periods.
This animation shows how trees change throughout the seasons, demonstrated by the example of English oaks.
The German engineer Rudolf Diesel patented the diesel engine in 1893.
The rise and drop of sea levels caused by the gravitational force of the Moon.
Carbon is bound in organic substances during photosynthesis, while during breathing, it is released into the atmosphere.
Dry land on the surface of Earth is divided into continents which are separated by oceans.
Soviet labour camps (Gulags) were located far from inhabited areas.
When the Sun, Earth, and the Moon are arranged in a straight line, the Moon can partially or completely obscure the Sun.
Lunar eclipses occur when the Moon passes through the shadow cone of Earth
The Earth is a rocky planet with a solid crust and oxygen in its atmosphere.
The huge dam built on the Colorado river in the US was named after a former American President.
The Olympian gods in ancient Greek mythology were as diverse as humans.
Unicellular eukaryotes living in freshwaters, capable of feeding autotrophically and heterotrophically.