Johan Gottschalk Wallerius
Chemist and mineralogist

Born
July 11th, 1709
316 years ago
Died
1785
240 years ago — 76 years old
Category
Scientists & Innovators
Country
Sweden
Links & References
Contributed significantly to the field of chemistry and mineralogy during the 18th century. Developed a comprehensive classification of minerals that influenced future mineral studies. Published works detailing the analysis and properties of various minerals. Served as a professor at Uppsala University, shaping the education of many students in scientific disciplines.
Published 'Gradus ad veram mineralogiam'
Developed mineral classification systems
Other People Born on July 11th
Frank Kelso
An admiral and politician in the United States Navy, served as the Secretary of the Navy from 1990 to 1993 during the administration of President George H.W. Bush. Oversaw significant naval operations during the Gulf War and was involved in the transition of the Navy during the end of the Cold War. Prior to this role, served in various leadership positions, including Commander in Chief of the U.S. Pacific Fleet, where managed operations in the Pacific region.
Continue ReadingNed Boulting
A British sports journalist and television presenter, Boulting has contributed significantly to cycling journalism. He presented coverage of the Tour de France for ITV and has authored several books. In addition to cycling, Boulting has worked in sports broadcasting for various events. His engaging style and insights into the sport have made him a prominent figure in the realm of cycling coverage.
Continue ReadingRudolf Abel
A colonel in the KGB, played a pivotal role in Cold War espionage. Managed operations that involved spying on the United States and its allies. Captured in 1957 during a covert assignment in New York City, led to a high-profile trial in the United States. His conviction resulted in a ten-year prison sentence before being exchanged for U-2 pilot Francis Gary Powers in a notable spy swap in 1962. Returned to the Soviet Union where he continued his work in intelligence.
Continue ReadingTheodore Maiman
An American-Canadian physicist and engineer, made significant contributions in the field of optoelectronics. In 1960, built the first working laser using a ruby crystal, which marked a pivotal moment in the development of laser technology. This invention led to diverse applications across various fields including medicine, telecommunications, and manufacturing. Served as a professor at several institutions, sharing knowledge and research on laser technology and its advancements.
Continue ReadingJoe Pavelski
An ice hockey player who has played in the National Hockey League (NHL) primarily for the San Jose Sharks and the Dallas Stars. Drafted 205th overall in the 2003 NHL Entry Draft, established a reputation as a reliable scorer and leader. Served as captain of the Dallas Stars and played a key role in leading the team to the Stanley Cup Final in 2020. Contributed significantly to Team USA in international competitions, representing the country in several World Championships and the Olympics.
Continue ReadingPrincess Irene of Hesse and by Rhine
Born into German nobility, a member of the Hesse family. Married Prince Heinrich of Prussia in 1888. Engaged in various philanthropic efforts, particularly focusing on the welfare of children and the promotion of social causes. Contributed to the establishment of charitable organizations and initiatives in Germany. Actively participated in royal duties and hosted numerous events to support various causes.
Continue Reading