Nuclear power plants convert the energy released during nuclear fission into electric power.
The Suez Canal is an artificial waterway connecting the Red Sea and the Mediterranean Sea.
Ancient Egyptians worshipped a large number of gods and goddesses.
The bacterial disease known as the bubonic plague is one of the deadliest infectious diseases in the history of mankind.
Seawater, as an external force, plays an important role in shaping coastlines.
The life cycle of vertebrates starts with the production of the reproductive cells of an individual and ends with the production of the reproductive cells...
A selection of legendary buildings from the history of civilisation.
This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...
In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.
The New Horizons space probe was launched in 2006, with the objective to study Pluto and the Kuiper Belt.
Carved into a granite cliff, the sculptures of the Mount Rushmore National Memorial depict four great United States presidents.
The 'wise man' originated in Africa and dispersed throughout most of the continents.
The Wright Flyer was the first successful powered, heavier-than-air aircraft, designed and built by the Wright brothers.
Eukaryotic cells with nuclei measuring only a few micrometres may contain nearly 2 metres of DNA, coiled multiple times.
Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.
Deforestation has a negative impact on the environment.
Humans have 4 types of teeth: incisors, canines, premolars and molars.
Bones of the upper limbs form the pectoral girdle and the arms.
Rivers play an important role in shaping the Earth's surface: they cause erosion as well as carrying and depositing sediment.
The Great ocean conveyor is a planet-wide system of ocean currents, which has a great influence on the Earth´s climate.