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The Physikalisch-Technische Bundesanstalt (PTB) is the national metrology institute of the Federal Republic of Germany, with scientific and technical service tasks.It is a higher federal authority and a public-law institution directly under federal government control, without legal capacity, under the auspices of the Federal Ministry for Economic Affairs and Climate Action.
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He became an engineering professor at the Physikalisch-Technische Bundesanstalt, Germany's national institute for natural and engineering sciences. By the 1990s he was assuming a leadership role in the German creationist movement, through the publication of several influential creationist books.
He then entered the Physikalisch-Technische Bundesanstalt in Berlin. From 1922 to 1925, he established the world's third largest helium-liquifier, and discovered in 1933 the Meissner effect , [ 2 ] damping of the magnetic field in superconductors .
A number of national metrology laboratories maintain atomic clocks: including Paris Observatory, the Physikalisch-Technische Bundesanstalt (PTB) in Germany, the National Institute of Standards and Technology in Colorado and Maryland, USA, JILA in the University of Colorado Boulder, the National Physical Laboratory (NPL) in the United Kingdom ...
In the Laboratory for Emerging Nanometrology, institutes of the TU Braunschweig conduct research together with departments of the Physikalisch-Technische Bundesanstalt. Research topics are nanonormals, method developments as well as ubiquitous sensors and standards. The focus is on the metrology of 3-dimensional Nano systems.
Günter Sauerbrey obtained his Ph.D from Technische Universität Berlin. He was responsible of the Laboratory of Medical Techniques and Dosimetry of the Physikalisch-Technische Bundesanstalt (PTB) in Berlin for 24 years (from 1974 to 1998). [2]
In 1901, Gehrcke joined the Physikalisch-Technische Reichsanstalt (PTR, Reich Physical and Technical Institute, after 1945 renamed the Physikalisch-Technische Bundesanstalt). In 1926, he became the director of the optical department, a position he held until 1946.