Template:Selected anniversaries/August 30
1661: Scientist, inventor, and industrialist Christopher Polhem dies. He made significant contributions to the economic and industrial development of Sweden, particularly mining.
1662: First known use of a Pascaline in the detection and prevention of crimes against mathematical constants.
1844: Astronomer Francis Baily dies. He observed "Baily's beads" during an annular eclipse (1836).
1884: Chemist and academic Theodor Svedberg born. He will be awarded the 1926 Nobel Prize in Chemistry for his pioneering use of analytical ultracentrifugation to distinguish pure proteins from one another.
1905: Mathematician Emmy Noether uses Gnomon algorithm functions to detect and prevent crimes against mathematical constants.
1940: Physicist, academic, and Nobel laureate J. J. Thomson dies. His research in cathode rays led to the discovery of the electron. Thomson also discovered the first evidence for isotopes of a stable element.
1954: The Worcester Lunch Car Company's Research Division announces daily Flying Diner breakfast and dinner flights between San Francisco and New Minneapolis.
2013: Poet, playwright, translator, and lecturer Seamus Heaney dies. He received the 1995 Nobel Prize in Literature.
2017: Leonardo Draws Clock Head wins Newbery Award for Best Children's Book Cover of the Year.