As an image for discussion to introduce a subtopic of mathematics: statistics. Information and ideas: The combination lock and the die cup in the background represent the two other subtopics of mathematics: combinatorics and probabilities.
Other Language German English *Yes, I have acknowledged the information on data
Mirrors are normally made from a sheet of glass with a thin layer of aluminum on the back. The actual reflection is formed on this aluminum layer. The glass serves to protect this layer from scratches. The smoother the mirror’s surface is, the sharper and more precise the resulting reflection will be.
Other Language German English *Yes, I have acknowledged the information on data
A simple electric circuit consists of an energy source (a battery here) and a load (an incandescent lamp here) that are connected together with a cable.
Other Language German English *Yes, I have acknowledged the information on data
Photo: A measurement is taken on an incandescent lamp using a continuity tester. The indicator light on the continuity tester lights up, thus the incandescent lamp is operational.
Other Language German English *Yes, I have acknowledged the information on data
Photo: The screen of the digital desktop weather station shows the following: • Weather forecast (derived from air pressure measurement) • Time • Date • Temperature • Humidity (as a percentage).
Other Language German English *Yes, I have acknowledged the information on data
Photo: String of lights with light-emitting diodes (LEDs) connected in parallel, detailed view.
Other Language German English *Yes, I have acknowledged the information on data
Photo: In a mechanical barometer, the deformation of the box is transferred directly to a needle via a system of levers and gears so that the air pressure can be read directly on a scale.
Other Language German English *Yes, I have acknowledged the information on data
Information and ideas: Suitable as a source for Internet inquiry for teachers and students alike.
Other Language German English *Yes, I have acknowledged the information on data
Information and ideas: Suitable as a source for internet inquiry for the teacher and students.
Other Language German English *Yes, I have acknowledged the information on data
The graphic shows possible diffraction effects according to aperture and wave length. Information and ideas: Diffraction arises in sound waves as well, for example at corners of buildings. Further information regarding this graphic is available as information sheet on the media portal of the Siemens Stiftung. Relevant for teaching: Sound/acoustics: parameters Vibrations and waves
Other Language German English *Yes, I have acknowledged the information on data
