Balance

The Roberval balance was invented around 1669 by the French physicist Gilles Personne de Roberval, who changed the design of the balance by putting the weighing pans on top of the arms of the balance. This system was improved in 1850 by Joseph Béranger, after whom the new balance design was named.

This piece was manufactured by Enosa, which was created by the National Institute of Industry in 1951. It manufactured precision optical equipment under the guidance of the German company Zeiss. Together with other trading houses, it played a significant role in the modernization of teaching supplies. It provided a diverse range of supplies for teaching the experimental sciences, from laboratory glass to projectors and sound recorders.

This piece is from a collection of teaching and laboratory supplies from the Andrés Manjón elementary school in Zaragoza.