Glass harmonica "The Minus Man" (1999) and "The Faculty" (1998). "I first became aware of glass instruments at about the age of 6 while visiting the Franklin Institute in Philadelphia. I can still recall being mesmerized by the appearance of the original Benjamin Franklin armonica then on display in its own showcase in the entry rotunda of the city's famed science museum." James Horner used a glass harmonica and pan flute for Spock's theme in the 1982 film "". Another instrument that is also played with wet fingers is the hydraulophone. The hydraulophone sounds similar to a glass armonica but has a
Glass harmonica and locate ranges of sounds. Above 4 kHz people primarily use the "loudness" of the sound to differentiate between left and right ears and thus triangulate, or locate the source. Below 1 kHz, they use the "phase differences" of sound waves arriving at their left and right ears to identify location. The predominant pitch of the armonica is in the range of 1–4 kHz, which coincides with the sound range where the brain is "not quite sure", and thus listeners have difficulty locating it in space (where it comes from), and discerning the source of the sound (the materials and