Richard Adolf Zsigmondy was an Austrian-born chemist. He was known for his research in colloids, for which he was awarded the Nobel Prize in chemistry in 1925, as well as for co-inventing the slit-ultramicroscope, and different membrane filters. The crater Zsigmondy on the Moon is named in his honour.
Richard Adolf Zsigmondy
Vintage cranberry glass bowl
Göttingen, grave Zsigmondy's
Title page to Zur Erkenntnis der Kolloide. Uber irreversible Hydrosole und Ultramikroskopie (1905)
Emil Zsigmondy was an Austrian physician and mountaineer.
Emil Zsigmondy
The brothers Otto (left) and Emil Zsigmondy in 1880
Zsigmondy's grave (left) in the cemetery of Saint-Christophe-en-Oisans.