![](/system/files/styles/large/private/art/59691/aff_oswald_kuelpe_schallpendel.jpg?itok=AtYq9KXt)
Oswald Külpe at the double sound pendulum (~1900).
150 x 100 x 2.5 cm (h x w x d)
Oswald Külpe sitting in front of a double sound pendulum which was used e.g. for the determination of just noticable differences in audition.
Oswald Külpe sitting in front of a double sound pendulum which was used e.g. for the determination of just noticable differences in audition.