Box 1
Contains 109 Results:
Gasometer nach Lavoisier, 2000
Technisches Museum Wien, Vienna, Austria. Gasometer nach Lavoisier, made by J. N. Fortin, Paris, 1790. With a device similar to this, Lavoisier demonstrated that hydrogen and oxygen react to form water in the ratio of two volumes of hydrogen to one volume of oxygen. The obvious cost of devices such as these lead many to believe that chemical investigations could be performed only by the wealthy.
Bohr carbon atom model, 2000
Technisches Museum Wien, Vienna, Austria. Model of carbon atom according to the atomic theory of Niels Bohr. The model shows the orbits of electrons predicted by Bohr's theory.
Angle barometer, 2000
Museum of the History of Science, Geneva, Switzerland. Angle barometer, which makes a small rise or fall in the mercury level easier to determine.
Angle barometer, detail, 2000
Museum of the History of Science, Geneva, Switzerland. Angle barometer, which makes a small rise or fall in the mercury level easier to determine.
Differential thermometer, 2000
Museum of the History of Science, Geneva, Switzerland. Differential thermometer, by Deleui(?), c. early 1800s, type of (Sir) John Leslie and also of Count Rumford (Benjamin Thompson).
Type IV thermometer, 2000
Museum of the History of Science, Geneva, Switzerland. Reproduction of a type IV thermometer of the Accademia del Cimento of Florence Italy of the 17th century. (The somewhat popular Galileo floating bulbs in a cylinder thermometer is type V.)
Zn/Cu voltaic pile, 2000
Museum of the History of Science, Geneva, Switzerland. Zinc/copper voltaic pile with glass rods for insulation. The repeated sequence is: zinc disk, copper disk, brine-soaked cloth disk.
Magdeburg hemispheres, 2000
Museum of the History of Science, Geneva, Switzerland. Magdeburg hemispheres, demonstration set. The hemispheres are mated and connected to a vacuum; the valve is opened until the space within is evacuated. The valve is closed and observers are challenged to separate the hemispheres, which they cannot. When the valve is opened, the spheres fall apart of their own weight. This demonstration was first performed by the mayor of Magdeburg, Germany, Otto von Guericke, in 1654.
Type IV thermometer, 2000
Museum of the History of Science, Geneva, Switzerland. Reproduction of a type IV thermometer of the Accademia del Cimento of Florence Italy of the 17th century. (The somewhat popular Galileo floating bulbs in a cylinder thermometer is type V.)
Ibn Sina remedy, 2000
PharmazieHistorisches Museum, Basel, Switzerland.