Johannes Rydberg, Swedish physicist and academic (d. 1919)
Johannes (Janne) Robert Rydberg (Swedish: [ˈrŷːdbærj]; 8 November 1854 – 28 December 1919) was a Swedish physicist mainly known for devising the Rydberg formula, in 1888, which is used to describe the wavelengths of photons (of visible light and other electromagnetic radiation) emitted by changes in the energy level of an electron in a hydrogen atom.
1854Nov, 8
Johannes Rydberg
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Events on 1854
- 31Mar
Convention of Kanagawa
Commodore Matthew Perry signs the Convention of Kanagawa with the Tokugawa Shogunate, opening the ports of Shimoda and Hakodate to American trade. - 1Apr
Hard Times (novel)
Charles Dickens' novel Hard Times begins serialisation in his magazine Household Words. - 19Aug
Grattan massacre
The First Sioux War begins when United States Army soldiers kill Lakota chief Conquering Bear and in return are massacred. - 27Sep
SS Arctic disaster
The steamship SS Arctic sinks with 300 people on board. This marks the first great disaster in the Atlantic Ocean. - 9Oct
Siege of Sevastopol (1854-55)
Crimean War: The siege of Sebastopol begins.