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Fatty acid molecules consist of a polar head and a non-polar tail, therefore they are suitable for removing fat stains.
This animation shows the characteristics of domestic light sources, from traditional light bulbs to LED lights.
The American electrical engineer Edison invented the incandescent light bulb in 1879, which changed our everyday life.
Trolleybuses and trams are environment-friendly means of public transport
This animation demonstrates how electric steam irons work.
This animation demonstrates the structure and operation of hair dryers.
A liquid-crystal display utilises the light modulating properties of liquid crystals.
This animation demonstrates how microwave ovens work.
This animation demonstrates how mobile phones work.
This animation explains how a plasma display television works.
This animation demonstrates how radios work.
This animation demonstrates the mechanism and operation of record players.
This animation demonstrates the functioning of the 3 basic types of water tap.
This animation demonstrates how a refrigerator works.
This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...
In a passive house a comfortable inner temperature can be ensured without the use of traditional heating and cooling systems.
Careful tooth brushing is an important part of oral hygiene.