- Through a Glass Lushly: Michalina Janoszanka’s Reverse Paintings (ca. 1920s) (publicdomainreview.org)
Michalina Janoszanka (1889–1952) is an artist better known for her role on the other side of the canvas, as the muse and mentee of famed Polish painter Jacek Malczewski (1854–1929). She posed for countless symbolist paintings, appearing alone, alongside Malczewski in double-portraits, among satyrs, and as Medusa. However, Janoszanka was more than a muse. She was also an artist in her own right. Trained in Kraków and Vienna, she became a strong oil painter. Her themes were traditional: portraits, still lifes, and religious scenes. But what most captured her mentor’s excitement, not to mention the attention of the Young Poland modernist art movement, was something else: the surreal, kaleidoscopic landscapes she painted directly onto glass.
- Rubidium (Wikipedia)
Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium and caesium. Rubidium is the first alkali metal in the group to have a density higher than water. On Earth, natural rubidium comprises two isotopes: 72% is a stable isotope 85Rb, and 28% is slightly radioactive 87Rb, with a half-life of 48.8 billion years – more than three times as long as the estimated age of the universe.
