S. P. L. Sørensen

Danish chemist, inventor of pH scale

S. P. L. Sørensen - Danish chemist, inventor of pH scale
Born

January 9th, 1868
157 years ago

Died

1939
86 years ago — 71 years old

Category

Scientists & Innovators

Country

Denmark

Links & References

Contributed significantly to the field of chemistry, particularly in the development of the pH scale, which quantitatively measures acidity and alkalinity in solutions. Also worked on various aspects of equilibrium and thermodynamics. Published numerous papers in chemistry that provided foundational knowledge for future research in the field. Held positions at various universities, influencing generations of chemists. The pH scale remains a vital tool in chemistry and related sciences.

Developed the pH scale

Contributed to thermodynamics

Other People Born on January 9th

Félix-Gabriel Marchand

Canadian politician, Premier of Quebec
Born
January 9th, 1832 193 years ago
Died
1900 125 years ago — 68 years old

Served as the 11th Premier of Quebec from 1897 to 1898. Involved in the legislature for numerous years, holding the position of Conservative Party leader. Participated in various initiatives promoting education and transportation, significantly influencing provincial policy. Played a critical role in the negotiation of the 1898 Quebec Hydro Bill.

Continue Reading

Susannah York

English actress in 'Tom Jones'
Born
January 9th, 1939 86 years ago
Died
January 15th, 2011 14 years ago — 72 years old

An English actress and activist, recognized for significant contributions to film and theatre during several decades of acting. Achievements include roles in renowned productions such as 'Tom Jones' (1963), where a performance garnered critical acclaim. Other notable appearances include 'The Killing of Sister George' (1968) and 'The Ballad of the Sad Café' (1966). In addition to a successful acting career, involvement in various humanitarian causes highlighted commitment to social issues and activism throughout life. Contributions to both entertainment and social advocacy established a multifaceted career.

Continue Reading

Chad Johnson

American football player, Pro Bowl wide receiver
Born
January 9th, 1978 47 years ago

A retired American football player played as a wide receiver in the National Football League (NFL). Achieved significant success with the Cincinnati Bengals, where a rapid playing style and acrobatic catches became a hallmark. Led the NFL in receiving yards in 2006 and was selected for the Pro Bowl multiple times during the career. Later played for the New England Patriots, contributing to the team's Super Bowl XLVI appearance. Known for a charismatic personality and engaging with fans and media off the field.

Continue Reading

Kenny Clarke

Jazz drummer and bandleader
Born
January 9th, 1914 111 years ago
Died
January 26th, 1985 40 years ago — 71 years old

A prominent figure in the development of modern jazz, played a key role in the emergence of bebop in the 1940s. Contributed to numerous recordings and performances with influential artists such as Dizzy Gillespie and Thelonious Monk. Established a distinctive drumming style that emphasized the use of the ride cymbal, influencing generations of musicians. Led bands and participated in pivotal jazz festivals, furthering the genre's evolution.

Continue Reading

Simone de Beauvoir

Philosopher and author of The Second Sex
Born
January 9th, 1908 117 years ago
Died
April 14th, 1986 38 years ago — 78 years old

A prominent French philosopher and writer, contributed significantly to existentialism and feminist theory. The publication of 'The Second Sex' in 1949 brought attention to the construction of women's roles in society and challenged traditional views on gender. Engaged in intellectual debates and maintained a lifelong partnership with philosopher Jean-Paul Sartre, influencing the post-war cultural landscape in France. Wrote novels, essays, and criticisms, engaging with social, political, and ethical questions.

Continue Reading

Giorgos Theofanous

Greek-Cypriot composer and producer
Born
January 9th, 1968 57 years ago

This individual emerged as a prominent composer and producer in the Greek music scene. Active since the late 20th century, contributions include work with numerous artists and the creation of popular albums. Collaborated with many well-known Greek singers, enhancing the popularity of various music genres. Achieved success not just in Cyprus, but also in Greece, making a significant mark in the entertainment industry. Composed songs that have become classics, showcasing a blend of traditional and contemporary styles. Engaged in producing television music, gaining recognition in broader media.

Continue Reading