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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-N already being filled in. He called it a "Word-Cross Puzzle." [6]
Alessandro Giuseppe Antonio Anastasio Volta (UK: / ˈ v ɒ l t ə /, US: / ˈ v oʊ l t ə /; Italian: [alesˈsandro ˈvɔlta]; 18 February 1745 – 5 March 1827) was an Italian chemist and physicist who was a pioneer of electricity and power, [1] [2] [3] and is credited as the inventor of the electric battery and the discoverer of methane.
The lead-acid battery is still used today in automobiles and other applications where weight is not a big factor. The basic principle has not changed since 1859. In the early 1930s, a gel electrolyte (instead of a liquid) produced by adding silica to a charged cell was used in the LT battery of portable vacuum-tube radios.
The Yai family was an upper-class samurai family which held a property of more than 300 koku for generations, but at the age of six Sakizō's father died and the house went bankrupt. After this, his mother and his uncle took him over. [2] In 1885, at the age of 21, Yai invented a continuous electric clock powered by wet-cell
Crossword-like puzzles, for example Double Diamond Puzzles, appeared in the magazine St. Nicholas, published since 1873. [31] Another crossword puzzle appeared on September 14, 1890, in the Italian magazine Il Secolo Illustrato della Domenica. It was designed by Giuseppe Airoldi and titled "Per passare il tempo" ("To pass the time"). Airoldi's ...
1913: The crossword puzzle invented by Liverpool-born Arthur Wynne (1871–1945). 1922: Discovery of Tutankhamun's tomb by Archaeologist and Egyptologist Howard Carter, funded by Lord Carnarvon. 1933: Bayko – a plastic building model construction toy, and one of the earliest plastic toys to be marketed [249] – invented by Charles Plimpton ...
In 1842, Grove developed the first fuel cell (which he called the gas voltaic battery), which produced electrical energy by combining hydrogen and oxygen, and described it using his correlation theory. [3] In developing the cell and showing that steam could be disassociated into oxygen and hydrogen, and the process reversed, he was the first ...
Alessandro Volta's theory of contact tension considered that the emf, which drives the electric current through a circuit containing a voltaic cell, occurs at the contact between the two metals. Volta did not consider the electrolyte, which was typically brine in his experiments, to be significant.