einsteinturm (11. 027)

Closed for renovations for over a year, the solar observatory on Potsdam’s Telegraphenberg in the science park also named for the renowned physicist, the solar observatory with a range of experiments designed to validate—or disprove—the theory of relativity has now been reopened to the public. Designed by industrial, Streamline Moderne architect Erich Mendelsohn and Richard Neutra in consultation with astronomer Erwin Finlay-Freundlich 1920 and operational by 1924, the accessible laboratory could demonstrate the gravitational red-shift (detectable in slight variations in the Sun’s spectral signature) by Einstein and introduce visitors, not just scientists and educators, to the new cosmological model and introduce basic research principles to general audiences. An active scientific facility run by the Leibniz Institute for Astrophysics to the present day, the Einstein Tower focuses on studies of the solar magnetic field and Sun spot activity. During the Nazi regime, the observatory was stripped of its name and independence and a bronze bust of Albert Einstein was removed from the premises. Employees and associates have maintained a tradition of placing a single, substitute stone (ein stein) in its place since.