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Arthur Wynne was born on June 22, 1871, in Liverpool, England, and lived on Edge Lane for a time. His father was the editor of the local newspaper, the Liverpool Mercury. [1] He emigrated to the United States on June 6, 1891, at the age of 19, [2] settling for a time in Pittsburgh, Pennsylvania. [dead link][3]
This is an accepted version of this page This is the latest accepted revision, reviewed on 25 August 2024. Development of the table of chemical elements The American chemist Glenn T. Seaborg —after whom the element seaborgium is named—standing in front of a periodic table, May 19, 1950 Part of a series on the Periodic table Periodic table forms 18-column 32-column Alternative and extended ...
Bernice Gordon (January 11, 1914 – January 29, 2015 [1]) was an American constructor of crosswords. [2] She created puzzles for many publications after beginning her career in the early 1950s, and holds the record as the oldest contributor to The New York Times crossword puzzle. [3] [4] A 1965 Times puzzle she wrote is credited as the first ...
New York Times puzzle editor (since 1993), NPR 's Weekend Edition Sunday puzzlemaster (since 1987) William F. Shortz (born August 26, 1952) is an American puzzle creator and editor who is the crossword editor for The New York Times. He graduated from Indiana University with a degree in the invented field of enigmatology.
Johan Erik Rydqvist. Baron Jöns Jacob Berzelius (Swedish: [jœns ˈjɑ̌ːkɔb bæˈʂěːlɪɵs] [1] (20 August 1779 – 7 August 1848) was a Swedish chemist. In general, he is considered the last person to know the whole field of chemistry. [2] Berzelius is considered, along with Robert Boyle, John Dalton, and Antoine Lavoisier, to be one of ...
List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [1]
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows (" periods ") and columns (" groups "). It is an icon of chemistry and is widely used in physics and other sciences. It is a depiction of the periodic law, which states that when the elements are arranged in order ...
An American-style crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one letter ...