it is the frequency of sound between 5000hz to 42000hz. invented by sir frances Galton 1822 to 1922,was one of the earliest devices used in testing hearing.
The Galton Whistle was created in 1951-07.
Galton's whistle method, developed by Sir Francis Galton in the late 19th century, is a technique used to investigate the range of human hearing, particularly in relation to high-frequency sounds. It involves using a specially designed whistle that can produce sounds at frequencies beyond the upper limit of human hearing, which is typically around 20 kHz. By adjusting the frequency and observing individuals' responses, Galton aimed to understand the variations in auditory sensitivity among people. This method contributed to the study of human perceptions and the limits of sensory capabilities.
Ray Galton's birth name is Raymond Percy Galton.
Francis Galton.
Jim Galton was born in 1945.
Galton Bridge was created in 1829.
The Galton Case was created in 1959.
Galton Institute was created in 1908.
Ray Galton is 6' 4".
wolf whistle
Samuel Tertius Galton died in 1844.
Francis Galton inventede the quantitive method