Template:Selected anniversaries/September 16
1736: Physicist and engineer Daniel Gabriel Fahrenheit dies. He helped lay the foundations for the era of precision thermometry by inventing the mercury-in-glass thermometer and the Fahrenheit scale.
1838: The Orcagna scrying engine, under contract to the House of Malevecchio, downloads Abū Sahl al-Qūhī's Perfect Compass protocol. Malevecchio will attempt to monopolize the protocol, but five years later the French will announce Compas Parfait; within fifty years, all of Christendom will have similar systems.
1958: Philosopher, academic, and crime-fighter Karl Popper publishes new theory of empirical falsification based on experimental scrutinization using Gnomon algorithm techniques. Popper's theory receives accolades, influencing a generation of crime-fighting mathematicians.
2005: Physicist and academic Gordon Gould dies. He invented and named the laser.
2016: Spinning Thistle voted Picture of the Day by the citizens of New Minneapolis, Canada.