Georg von Békésy
Who was Georg von Békésy?
Nobel laureate: Nobel Prize in Physiology or Medicine (1961)
Biographical data adapted from Wikipedia’s article on Georg von Békésy (CC BY-SA 4.0).
Biography
Georg von Békésy was a Hungarian-American biophysicist born in Budapest on June 3, 1899. He studied at Eötvös Loránd University and the University of Bern, where he developed a strong background in physics and engineering. This expertise played a crucial role in his research on hearing. He started his scientific career in telecommunications research, focused on improving telephone systems, but eventually became more interested in understanding how human hearing works.
Békésy transformed auditory research with his experimental methods and careful observations of the inner ear. By using strobe photography and silver flakes as markers, he could observe how the basilar membrane in the cochlea moved when sound waves hit it. His experiments showed that the membrane moves in a wave-like pattern, with different sound frequencies peaking at specific points along the membrane. High-frequency sounds caused the strongest vibrations near the cochlea's base, while low-frequency sounds affected the apex the most.
These findings helped Békésy create a detailed theory on how the human ear processes sound frequencies. He showed that the cochlea acts as a frequency analyzer, with different parts of the basilar membrane reacting best to certain frequencies before sending signals through nerve fibers to the brain. This mechanical sorting of frequencies happens before any neural processing, marking a key aspect of how we perceive sound.
For his groundbreaking work on how mammals hear, Békésy was awarded the Nobel Prize in Physiology or Medicine in 1961. He also received many other honors, including the Silver Leibniz Medal in 1937, the Howard Crosby Warren Medal in 1955, and an honorary degree from Semmelweis University in 1969. Additionally, he earned the ASA Gold Medal for his contributions to acoustics. Later in his life, he moved to the United States, where he continued his research until he passed away in Honolulu on June 13, 1972.
Before Fame
Békésy got his start in science thanks to his engineering background and early work in telecommunications. During the 1920s and 1930s, he worked for the Hungarian telephone system, where he faced practical problems related to sound transmission and quality. This technical work introduced him to acoustic phenomena and sparked his interest in how sound waves act in different mediums.
The scientific scene in early 20th-century Europe, with its focus on precision measurement and experimental innovation, was the perfect setting for Békésy's detailed research approach. His mix of engineering skills, physics knowledge, and access to advanced optical tools helped him solve previously unsolvable problems in auditory research. Advances in photography and microscopy during this time gave him the tools he needed to directly observe cochlear mechanics, which earlier researchers couldn't do.
Key Achievements
- Discovered the wave motion of the basilar membrane using strobe photography and direct observation
- Explained the mechanical basis of frequency discrimination in mammalian hearing
- Received the Nobel Prize in Physiology or Medicine in 1961 for cochlear research
- Developed the place theory of hearing that revolutionized understanding of auditory processing
- Created detailed mechanical models demonstrating inner ear function
Did You Know?
- 01.He constructed elaborate mechanical models of the human ear using brass and other metals to demonstrate cochlear function to audiences
- 02.His original research was motivated by his work improving telephone systems for the Hungarian postal service
- 03.He was one of the few Nobel laureates to receive the prize for work done primarily with relatively simple optical instruments rather than complex modern equipment
- 04.Békésy built a summer house in Hawaii shaped like a Polynesian temple and filled it with his collection of primitive art
- 05.He used his own ears as experimental subjects, often testing painful sound levels to gather data
Awards & Honors
| Award | Year | Details |
|---|---|---|
| Nobel Prize in Physiology or Medicine | 1961 | for his discoveries of the physical mechanism of stimulation within the cochlea |
| Silver Leibniz medal | 1937 | — |
| honorary doctor of Semmelweis University | 1969 | — |
| ASA Gold Medal | — | — |
| Howard Crosby Warren Medal | 1955 | — |