Advert for the Blondin Gyroscope
Medium: Print on paper
Gyroscopes are devices used to keep navigation instruments steady. The outer apparatus rotates in response to movements and the instrument within maintains its orientation as a result. It was invented in 1852 by Frenchman Leon Foucault who was conducting experiments to investigate the rotation of the earth. The 19th century was a time of technological and scientific development - items like the Blondin Gyroscope, featured on this leaflet, were as popular with the general public and children as they were with scientists.