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A dishwasher containing clean dishes. A dishwasher is a machine that is used to clean dishware, cookware, and cutlery automatically. Unlike manual dishwashing, which relies on physical scrubbing to remove soiling, the mechanical dishwasher cleans by spraying hot water, typically between 45 and 75 °C (110 and 170 °F), at the dishes, with lower temperatures of water used for delicate items.
The first dishwasher was a wooden one whereby a person would turn a handle to splash water on the dishware. It was invented in 1850 by Joel Houghton of Ogden, New York. The device was a failure. [109] Houghton received U.S. patent #7,365 on May 14, 1850. [110] The first successful and practical dishwasher was invented in 1886 by Josephine Cochrane.
Drawing up a comprehensive list of words in English is important as a reference when learning a language as it will show the equivalent words you need to learn in the other language to achieve fluency.
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I've known for a long time that in the sun four hydrogen atoms fuse to make a helium atom. I never really thought about it much, but just recently I realized that four protons fusing together should make beryllium, not helium.