/en/cpe/teaching/further-sources
Further Sources Listen Databases Databases This list is work in progress. General OECD.Stat Statistisches Bundesamt Eurostat UNSD Statistical Database World Bank Open Data Deutsche Bundesbank gesis Re
/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/working-group-physics/histolab/thematical-subsections/electricity/coulombs-torsion-balance
Coulomb's Torsion Balance Listen Coulomb's Torsion Balance is a setup based on two glass cylinders, one of 65cm length with a torsion micrometer (fig.2, right) is placed on a glass plate that rests on
/en/working-group-physics/histolab/thematical-subsections/particle-physics-and-radioactivity/geiger-mueller-counter-tube
Geiger Müller counter tube Listen The Geiger Müller counter tube is one of the earliest measurement devices for the field of radioactivity. Walter Müller developed it under the auspices of his thesis
/en/working-group-physics/histolab/thematical-subsections/particle-physics-and-radioactivity/millikans-apparatus-for-the-determination-of-the-elementary-charge
Millikan's apparatus for the determination of the elementary charge Listen From 1909 until 1911 Robert A. Millikan together with his assistant Harvey Fletcher conducted experiments to determine the el
/en/working-group-physics/histolab/thematical-subsections/hydrostatics/litrameter
Litrameter Listen Robert Hare was a lecturer in chemistry at Pennsylvania University. His litrameter was represented in science periodicals of both the old and new world. By his own account he used st
/en/working-group-physics/histolab/thematical-subsections/optics/camera-obscura
Camera Obscura Listen A Camera Obscura is an darkened room or volume into which light can shine through a pin hole, sometimes a pin hole combined with a lens. On the wall opposite to the entrance hole
/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/barlows-wheel
Barlow's Wheel Listen Barlow's Wheel is the prototype of unipolar engine. Peter Barlow published its description in 1822 in the article "A curious electro-magnetic experiment". The star-shaped copper
/en/working-group-physics/histolab/thematical-subsections/electricity/henleys-quadrant-electrometer
Henley's Quadrant Electrometer Listen Henley's variation of a quadrant electrometer consists of an upright column with a brass stand. Attached to the column is a wire with an elder pith ball. If the i