Plain mirror part of a heliostat. Functioning: The mirror was used to reflect sunlight for experiments in optics. DataInventory Number: OPT01Date: 1870 (c.)Dimensions: Diameter : 35cm, Mirror diameter : 33cmInstrument Categories: Optics PlacesLocation: Μουσείο Φυσικών Επιστημών και Τεχνολογίας, Πανεπιστήμιο Αθηνών - Museum of Science and Technology, University of AthensOrigin: Πανεπιστήμιο Αθηνών - Φιλοσοφική Σχολή / University of Athens - Faculty of Philosophy