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This animation shows the electron configuration of the calcium atom.
The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for life on Earth.
Space probes and Mars rovers examine the structure of Mars and possible traces of life.
While generators convert mechanical energy into electrical energy, electric motors convert electrical energy into mechanical energy.
The steam engine, perfected by the Scottish engineer James Watt, revolutionised technology.
Energy released during nuclear fission can be used for civilian or military purposes.
Major phases in the history of theories and views about the structure of the atom.
In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.
Bats use ultrasound to navigate and hunt for prey.
Mechanical bell that functions by means of an electromagnet.
The atomic bomb is one of the most destructive weapons in human history.
A dynamo converts mechanical energy into direct current.
The diameter of the Sun is about 109 times that of the Earth. Most of its mass consists of hydrogen.
The orbits of the 8 planets in our Solar System are elliptical.
The New Horizons space probe was launched in 2006, with the objective to study Pluto and the Kuiper Belt.
Electric motors are present in many areas of our everyday lives. Let's learn about the different types.
The formation of the Sun and the planets started with the contraction of a dust cloud about 4.5 billion years ago.
Waves play an extremely important role in many areas of our lives.
Massive accelerating or orbiting bodies cause ripples in spacetime. These are called gravitational waves.
This animation explains the most important characteristics of waves through sound waves.