/en/working-group-physics/histolab/thematical-subsections/hydrostatics/sikess-hydrometer
Sikes's Hydrometer Listen The hydrometer is a measurement device to determine the mass density of liquids. It was developed in the early 19th century and put to use by the British Customs Services to
/en/tmeuf/students/secondary-school/topics-content/ecosystems-habitats/beech-forest
Beech Forest Listen Old Beech Forests in Europe, World Heritage of UNESCO Pupils get to know the Beech Forest and its typical species. Teaching material worksheets-beech.pdf 07/16/2015 281 KB (PDF) Do
/en/tmeuf/students/secondary-school/topics-content/endangered-species/irrawaddy-dolphin
Irrawaddy Dolphin Listen Measures for the protection of endangered species on the example of the Irrawaddy Dolphin Pupils learn about the endangered species Irrawaddy Dolphin, its habitat and threats.
/en/working-group-physics/histolab/thematical-subsections/astronomy/sextant
Sextant Listen The sextant was and still is a navigational instrument. It evolved from the ancient octant (eigth part of the circumference of a circle) and is used to measure the angular difference be
/en/working-group-physics/histolab/thematical-subsections/electricity/leyden-jars
Leyden Jars Listen A newly developed instrument shocked (most literally) scientists researching electricity in 1745: the Leyden Jar or Amplifiying Jar. The Prelate Ewald Jürgen von Kleist and the Leyd
/en/working-group-physics/histolab/thematical-subsections/electricity/electrostatic-generator
Electrostatic Generator Listen The electrostatic generator is one of many variants of a frictional electrical machine used in the second half of the 18 th century. It became standard equipment for the
/en/working-group-physics/histolab/thematical-subsections/electricity/voltaic-crown-of-cups
Voltaic Crown of Cups Listen The Crown of Cups is a modification of the Voltaic Pile. A rectangular plate of copper and zinc are connected by a wire soldered to both plates and thus an "electric eleme
/en/working-group-physics/histolab/thematical-subsections/electricity/double-electrophorus-on-the-model-of-lichtenberg
Lichtenberg's Double Electrophorus Listen The Double Electrophorus is a further development from the Electrophorus , capable to produce and provide both electrostatical charges by means of electrostat
/en/working-group-physics/histolab/thematical-subsections/electricity/electrophorus
Electrophorus Listen The Electrophorus is an electrostatic generator, developed by Wilcke around 1761 and popularised by Volta towards the end of the 18 th century. The electrophorus consists of a res
/en/working-group-physics/histolab/thematical-subsections/electricity/tangent-galvanometer
Tangent Galvanometer Listen A galvanometer measures an electrical current by means of the electromagnetical properties of an induction coil and the Lorentz force. The instrument contains various coils