Who invented the glass?

Most of us have certainly never thought about who invented his window glass. It is just there and from time to time we have to clean it. But glass is much more fascinating than you might think. So what is it all about, with this strangely durable but completely transparent material that protects us from... Continue Reading →

The worst Volcanic Eruption ever

El Salvador in Central America is one of the most volcanic and earthquake-hit countries in the world. Twenty-two volcanoes crowd into the smallest of spaces. There is hardly a place in the country from which one does not see these mighty giants. The capital San Salvador, on the other hand, has only few sights. Whatever... Continue Reading →

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