DETLEV VAN RAVENSWAAY / SCIENCE PHOTO LIBRARY DETLEV VAN RAVENSWAAY / SCIENCE PHOTO LIBRARY
Einstein Tower. This tower is a solar observatory located in Albert Einstein Science Park, Potsdam, Germany. Originally the structure was built by the physicist Erwin Finlay-Freundlich who wanted a building in which he could conduct experiments to test Einstein's theories of relativity. Today it is used as part of the Astrophysical Institute Potsdam.
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