/en/tmeuf/topics-and-content/endangered-species/students/primary-school/european-otter
European Otter Listen Pupils learn about the European Otter and its habitat. Teaching material who-am-i.pdf 07/16/2015 430 KB (PDF) Download
/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/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/optics/newtonian-prisms
Newtonian Prisms Listen In 1672, Isaac Newton published an article on the composition of the sun's light. He put forward the opinion, that the spectral colours were inherent properties of the white li
/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/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
/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
/en/working-group-physics/histolab/thematical-subsections/optics/reading-stone
Reading Stone Listen A Reading Stone is a thick plano-convex lens and can be considered to be the prototype of modern magnifying glasses. It was and still is put to use to magnify minute writings. fur
/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