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

AJ McLean

Singer and member of Backstreet Boys
Born
January 9th, 1978 47 years ago

A prominent figure in the music industry, a member of the vocal group Backstreet Boys. The group formed in 1993 and achieved widespread fame in the late 1990s and early 2000s. Released several chart-topping hits, including 'I Want It That Way' and 'Quit Playing Games (With My Heart).' Additionally ventured into acting, appearing in various television shows and reality series. Established a successful solo career, with notable singles and performances.

Continue Reading

Luke Patten

Rugby league player and referee
Born
January 9th, 1980 45 years ago

One of the prominent figures in Australian rugby league, played primarily as a fullback. Played for the Canterbury Bulldogs from 2003 to 2011, contributing significantly to the team's victories. Transitioned into officiating after retirement and served as a referee in various competitions, showcasing a deep understanding of the game both on and off the field.

Continue Reading

Nicola Peltz

American Actress in Transformers: Age of Extinction
Born
January 9th, 1995 30 years ago

An actress emerged in the entertainment industry in the early 2000s. Gained prominence for her role as Tessa Yeager in the movie Transformers: Age of Extinction. Also appeared in the television series Bates Motel, portraying Bradley Martin. Participated in various modeling campaigns and collaborated with fashion brands. Demonstrated versatility in both film and television projects.

Continue Reading

Nina Dobrev

Bulgarian-Canadian actress, 'The Vampire Diaries'
Born
January 9th, 1989 36 years ago

Born in Bulgaria and later moving to Canada, this actress gained recognition for her compelling performances on television. A significant role was in the series 'The Vampire Diaries', where she portrayed Elena Gilbert and Katherine Pierce, characters central to the show's plot. Other notable projects included starring in films such as 'The Perks of Being a Wallflower' and 'xXx: Return of Xander Cage'.

Continue Reading

Thomas Warton

English poet and literary critic
Born
January 9th, 1728 297 years ago
Died
May 21st, 1790 234 years ago — 62 years old

Born in England in 1728, a poet and critic contributed significantly to the fields of poetry and literary history. Worked as a professor of poetry at Oxford University and produced several important works that explored the history of English poetry. Composed notable poems expressing themes of nature and nostalgia. Authored 'The History of English Poetry,' which provided insights into the development of poetry from the Anglo-Saxon period to the 18th century. His literary criticism highlighted the importance of studying past poets and their influence on contemporary works.

Continue Reading

K Callan

Actress in 'Superman' and 'Malcolm in the Middle'
Born
January 9th, 1936 89 years ago

An American actress and author, significant work includes guest roles in television series such as 'Malcolm in the Middle' and feature films like 'Superman' and 'Superman II'. K Callan has displayed versatility across various genres including comedy and drama. Additionally, she has authored works that explore the craft of acting and personal experiences, contributing to the literature in the realm of performing arts.

Continue Reading