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The dates listed in this section refer to the earliest evidence of an invention found and dated by archaeologists (or in a few cases, suggested by indirect evidence). Dates are often approximate and change as more research is done, reported and seen. Older examples of any given technology are often found.
The year 1900 in science and technology involved some significant events, listed below. ... Karl Landsteiner makes the first discovery of blood types, ...
1934 Acrostic (puzzle) An acrostic is a type of word puzzle, related somewhat to crossword puzzles, that uses an acrostic form with lettered clues and numbered blanks. The acrostic puzzle was invented in 1934 by Elizabeth Kingsley, first appearing in the March 31 edition of the Saturday Evening Post. [256] 1935 Richter magnitude scale
Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. ... Online Crossword & Sudoku Puzzle Answers for 09/25/2024 - USA TODAY ...
1924: Edwin Hubble: the discovery that the Milky Way is just one of many galaxies; 1925: Erwin Schrödinger: Schrödinger equation (Quantum mechanics) 1925: Cecilia Payne-Gaposchkin: Discovery of the composition of the Sun and that hydrogen is the most abundant element in the Universe; 1927: Werner Heisenberg: Uncertainty principle (Quantum ...
Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. ... Online Crossword & Sudoku Puzzle Answers for 09/06/2024 - USA TODAY ...
Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. ... Puzzle solutions for Friday, Nov. 29, 2024. USA TODAY.
Engineers during World War Two test a model of a Halifax bomber in a wind tunnel, an invention that dates back to 1871.. The following is a list and timeline of innovations as well as inventions and discoveries that involved British people or the United Kingdom including the predecessor states before the Treaty of Union in 1707, the Kingdom of England and the Kingdom of Scotland.