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A normal pickaxe handle is made of ash or hickory wood and is about 3 ft (91 cm) and weighs about 2.5 lb (1.1 kg). British Army pickaxe handles must, by regulation, be exactly 3 ft (91 cm) long, for use in measuring in the field. [citation needed] New variant designs are: With a plastic casing on the thick end. Made of carbon fibre [citation ...
He is best known for the invention of the crossword puzzle in 1913, when he was a resident of Cedar Grove, New Jersey. [5] Wynne created the page of puzzles for the "Fun" section of the Sunday edition of the New York World. For the December 21, 1913, edition, he introduced a puzzle with a diamond shape and a hollow center, with the letters F-U ...
An American-style 15×15 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 ...
The following articles cover the timeline of United States inventions: . Timeline of United States inventions (before 1890), before the turn of the century Timeline of United States inventions (1890–1945), before World War II
Blackhawk Manufacturing was founded in 1919 in Milwaukee, Wisconsin as a subsidiary of the American Grinder Company (later named Applied Power Corporation). It made automotive tools, such as wrenches and sockets, [1] and a number of specialty tools.
As a simple but effective tool, mattocks have a long history. Their shape was already established by the Bronze Age in Asia Minor and ancient Greece. [5] According to Sumerian mythology, the mattock was invented by the god Enlil. [6] Mattocks (Greek: μάκελλα) are the most commonly depicted tool in Byzantine manuscripts of Hesiod's Works ...
Pages in category "American inventions" The following 200 pages are in this category, out of approximately 829 total. This list may not reflect recent changes .
The larger Sunday crossword, which appears in The New York Times Magazine, is an icon in American culture; it is typically intended to be a "Wednesday or Thursday" in difficulty. [7] The standard daily crossword is 15 by 15 squares, while the Sunday crossword measures 21 by 21 squares.