Seawater desalination

Competing with each other in the 19th and 20th centuries, the world´s most powerful...

This animation demonstrates the structure and operation of different types of optical...

Tower cranes are machines used for lifting loads weighing up to several tonnes.

Observatories are often built at high elevations to minimise the effects of atmospheric...

An air conditioner cools the air inside by drawing heat away and releasing it outside.

This animation demonstrates how mobile phones work.

This animation demonstrates the structure and most important peripherals of desktop...

The American inventor presented his invention revolutionising telecommunication at New...