Hubble Space Telescope

The Hubble Space Telescope orbits outside the distorting influence of Earth´s atmosphere.

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Passive house

In a passive house a comfortable inner temperature can be ensured without the use of...

Solar power station

Solar power stations convert solar energy into electricity.

The developed North and the developing South

There is a huge gap between the socio-economic conditions of the northern and southern...

The mix of the European peoples

During those few thousand years, many kinds of people settled in Europe. Their way of...

The Channel Tunnel

The Channel Tunnel is a 50.5 km long railway tunnel between the United Kingdom and...

Developed countries

Developed countries are the engines of the world economy, and they have the highest...

Voyager space probes

The Voyager space probes were the first man-made objects to leave the Solar System....

The development of the global economy

The current global economy has evolved from private enterprise.

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