PTB. Annual report 2020

This annual reports contains the following news of the year: Planning the Innovation Center for Systems Metrology; GEMIMEG-II: Reliable data made in Germany; Wind power and flight safety; Communication and validation of SI-based smart metrological data; High-voltage measurement for the energy transition; Symposium on the mitigation of industrial explosions turns into worldwide virtual discussion forum; Connected optical atomic clocks searching for dark matter; Single photons as light source for radiometry; Helmholtz Prize for high-precision measurements of the theory of relativity and nanomaterials; Semi-automated ventilation bag valve mask developed; Electrical and mechanical measurements on nanomaterials; Quality assurance in radiation therapy with charged particles; New concept for resistance thermometry; Machine Learning: Large ECG dataset has been published; Development Cooperation: "Corona Task Force" has been launched; Secure synchronization of "computer time"; Quantum computer made in Lower Saxony; Quantum logic spectroscopy unlocks potential of highly charged ions; Approx. 9.2 million euros for quantum research at LUH and PT; Departmental research institutes have their national socialist past studied; Jens Frahm receives Werner von Siemens Ring. Furthermore the annual report contains statistical data of publications and lectures; selected publications, Meeting of PTB's Kuratorium (Advisory Board); Newly appointed to management posts; Prizes and awards; Vocational training at PTB; Academic degrees; Facts and figures; and the Organization Chart of PTB.