Helicopter experiment (Oszkár Asboth, 1928)

As a milestone in the history of aviation, Oszkár Asboth´s first helicopter made its...

Labour camp in Hungary (Recsk)

About 1,500 people were taken to the labour camp also known as ‘the Hungarian Gulag’...

Folding (basic)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.

Cysteine

An amino acid containing sulphur, one of the amino acids that make up proteins.

Silicon

A crystalline substance, an extremely important material in the electronics industry ...

Hydrogen bromide (HBr)

One of the hydrogen halides, it is used for the production of alkyl bromides.

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