This animation demonstrates how a CRT television works.
This animation demonstrates how mobile phones work.
A type of rotary engine of high efficiency
Many freshwater fishes are also popular as food.
A species of venomous snakes widespread in Europe. Its bite is rarely fatal to humans.
The Japanese Mitsubishi A6M, commonly known as 'Zero' to the Allies, was a legendary aircraft of the Second World War.
The European badger is an omnivorous, nocturnal animal. Badger colonies live in large burrow systems, called setts.
The torii is a traditional Japanese gate built at the entrance of shrines.
Stirling engines are also known as external combustion engines. Unlike internal combustion engines (e.g. Otto-engine), here combustion takes place outside...
The characteristic ancient Greek statue was found on the bottom of the Adriatic Sea.
One of the Croatian sculptor's most famous works depicts a woman wearing a traditional costume.
A special, 3D version of the well-known Chinese logical game.
In a passive house a comfortable inner temperature can be ensured without the use of traditional heating and cooling systems.
A differential allows the driven wheels of a car to rotate at different speeds when the car is turning.
The world-famous limestone cave with its amazing cave paintings is one of the most important archaeological sites of Palaeolithic art.
The cause of a heart attack is the blockage of a coronary artery. It is one the most common causes of death.
Tower cranes are machines used for lifting loads weighing up to several tonnes.
The largest type of Arab sailboat, most commonly used as trading vessels in the Persian Gulf.
This animation demonstrates the design and operation of a traditional cinema projector.
Tardigrades can survive in extreme environments, they can even stay alive in outer space.