Irish-born Scottish physicist, mathematician, engineer, and inventor made seminal contributions to thermodynamics, among many other fields

Lord Kelvin, the Coldest Possible Temperature, and the Age of the Earth

Ernst Schering – A Pioneer in Research and the Chemical Industry
The chemist and entrepreneur began as a pharmacist at his "Grüne Apotheke," improved chemicals for photography, founded Schering AG, and co-founded the German Chemical Society

Charles Friedel and the Accidental Discovery of an Important Reaction
French chemist co-discovered the Friedel–Crafts reactions with James Mason Crafts

Gustav Kirchhoff – Colored Flames, Prisms, and Element Discovery
German physicist co-founded spectral analysis and co-discovered caesium and rubidium together with Robert Bunsen

Helen Murray Free and a Breakthrough in At-Home Diabetes Testing
American chemist developed diagnostic test strips with her research partner and husband, Alfred Free, revolutionizing self-testing for diabetes and other diseases

Gertrude B. Elion and the “Antiviral Odyssey”
American Nobel Laureate, biochemist, and pharmacologist co-developed groundbreaking drugs for leukemia, herpes, and organ transplant rejection

Carolina MacGillavry and the Determination of Crystal Structures
Dutch chemist and crystallographer known for her discoveries on the use of diffraction in crystallography

Rachel Fuller Brown and the Fight against Fungal Infections
American chemist co-developed the antifungal medication nystatin

Kenichi Fukui and the Importance of Frontier Orbitals
First Chemistry Nobel Laureate from Asia performed groundbreaking theoretical work on chemical reactivity

350th Birthday: Johann Konrad Dippel
German alchemist co-developed a process for the production of Prussian blue