Four-stroke Otto engine

This animation demonstrates the type of engine most commonly used in cars.

Voyager space probes

The Voyager space probes were the first man-made objects to leave the Solar System. They gather data about outer space and carry information about humanity.

The Moon

The Moon is the Earth's only natural satellite

Evaporation and boiling

What happens in a liquid during evaporation and boiling? What does its boiling point depend on?

The physics of bicycles

Some principles of physics can be demonstrated through the functioning of bicycles.

The Solar System; planetary orbits

The orbits of the 8 planets in our Solar System are elliptical.

The development of celestial mechanics

This animation introduces the studies of astronomers and physicists whose works fundamentally changed our view of the universe.

Mars Exploration Program

Space probes and Mars rovers examine the structure of Mars and possible traces of life.

Watt´s steam engine (18th century)

The steam engine, perfected by the Scottish engineer James Watt, revolutionised technology.

Chain reaction

Energy released during nuclear fission can be used for civilian or military purposes.

Development of the atomic model

Major phases in the history of theories and views about the structure of the atom.

Covalent bonds in benzene molecules

In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.

Lesser horseshoe bat

Bats use ultrasound to navigate and hunt for prey.

Nuclear power plant

Nuclear power plants convert the energy released during nuclear fission into electric power.

Dynamo (intermediate)

A dynamo converts mechanical energy into direct current.

Cloud formation, types of clouds

Evaporating surface water forms clouds of various shapes from which water falls back to the surface as precipitation.

The life-cycle of the Solar System

The formation of the Sun and the planets started with the contraction of a dust cloud about 4.5 billion years ago.

Elementary particles

Matter is made up by quarks and leptons, while interactions are carried by bosons.

Kepler´s laws of planetary motion

The three important laws describing planetary motion were formulated by Johannes Kepler.

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