Tom Parry Jones
Welsh chemist, inventor of the breathalyzer
Welsh chemist, inventor of the breathalyzer
1935
91 years ago
Scientists & Innovators
Wales
A chemist from Wales, contributed significantly to analytical chemistry through the invention of the breathalyzer, a device used to measure blood alcohol content from breath samples. The breathalyzer has had a profound effect on law enforcement and public safety practices. This invention has influenced legislation and practices regarding drinking and driving, leading to extensive use across various countries. The official breathalyzer device has undergone numerous advancements since its initial creation, but the foundational concept originated with the contributions made by this chemist.
Invented the breathalyzer
Influenced DUI enforcement practices
A prominent French general, this military leader played a significant role during World War II and the First Indochina War. He commanded the French forces during the liberation of France and had a strategic impact on military operations in North Africa and Europe. In the aftermath of World War II, this general was appointed as the commander of French forces in Vietnam, where he sought to reestablish French control over the region amid growing nationalist movements. His leadership was marked by both tactical engagements and efforts to strengthen French military presence.
Continue ReadingRuled as Byzantine Emperor from 1042 until death in 1055. The reign was marked by significant architectural achievements, including the completion of the major church of Hagia Sophia. Implemented various public works and promoted cultural developments. Engaged in conflicts with neighboring states, notably the Seljuks. His reign also faced internal strife, leading to political instability in the empire during the latter part of his rule.
Continue ReadingServed as a French admiral during the American Revolutionary War. Commanded the French fleet at the Battle of the Chesapeake in 1781, which played a crucial role in the victory of American and French forces over the British. His strategic leadership contributed to the successful Siege of Yorktown, leading to the surrender of British General Cornwallis. Returned to France after the war and continued to serve in various naval capacities until death.
Continue ReadingActive during the Italian Renaissance, Ghirlandaio contributed significantly to the development of fresco painting. He collaborated with prominent figures of his time and established a successful workshop in Florence. Ghirlandaio produced numerous works that demonstrated mastery in composition and detail. His most notable works include the frescoes in the Tornabuoni Chapel in Santa Maria Novella and the Story of Saint John the Baptist in the Ospedale degli Innocenti. His style combined elements of realism and narrative clarity, influencing later artists.
Continue ReadingA French priest and theologian, significant contributions were made in the field of eschatology and religious debate during the late 17th century. Advocated for Protestantism in France, providing important theological perspectives and defending the rights of Huguenots. Writings included discussions on key doctrinal issues and responses to contemporary theological controversies. Engaged in extensive theological debates, influencing religious thought during a tumultuous period marked by conflict between Catholic and Protestant traditions.
Continue ReadingA prominent director and producer in Bangladesh, contributions spanned over four decades. Began career in the film industry during the 1970s and directed numerous films. Pioneered the genre of films that blended social issues with entertainment, producing works that resonated with the Bangladeshi audience. Received several awards for contributions to cinema, reflecting the evolution of the country's film industry.
Continue Reading