The first commercially successful technique of photography was invented by the French Louis Daguerre.
A phase transition is the change of a substance from one state of matter to another.
The two groups of angiosperms are monocots and dicots.
Legendary geographical discoveries at the beginning of the Modern Age had not only redrawn maps, but also had a truly diverse impact.
At the end of the 18th century, mining boomed because of the great need for raw materials in the dynamically developing industry.
This animation demonstrates the structure of nitrogen molecules, with one sigma and two pi bonds holding the atoms together.
In transmission systems, the engine torque is modified by reducing or increasing rotational speed.
Commercial maritime routes of container ships form a global network.
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...
The bacterial disease known as the bubonic plague is one of the deadliest infectious diseases in the history of mankind.
This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...
The Suez Canal is an artificial waterway connecting the Red Sea and the Mediterranean Sea.
The Wright Flyer was the first successful powered, heavier-than-air aircraft, designed and built by the Wright brothers.
The New Horizons space probe was launched in 2006, with the objective to study Pluto and the Kuiper Belt.
The building commissioned by Pompey the Great was the first permanent theatre in Ancient Rome.
Nuclear power plants convert the energy released during nuclear fission into electric power.
Majestic even in its ruins, this city was the largest and most populous settlement in the pre-Columbian Americas.
This animation presents some interesting facts in the field of astronomy.
Standing bodies of water can form in depressions on the surface by both endogenic and exogenic forces, as well as by human activity.
The Code of Hammurabi is the emblem of the Mesopotamian civilisation; it contains 282 laws carved into a basalt stele.