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The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invented in 1926 by Albert Einstein and his former student Leó Szilárd , who patented it in the U.S. on November 11, 1930 ( U.S. patent 1,781,541 ).
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95 characters; the 52 alphabet characters belong to the Latin script. The remaining 43 belong to the common script. The 33 characters classified as ASCII Punctuation & Symbols are also sometimes referred to as ASCII special characters. Often only these characters (and not other Unicode punctuation) are what is meant when an organization says a ...
Emoji Unicode name Codepoints Added in Unicode block Meaning 😀 Grinning Face U+1F600: Emoji 1.0 in 2015 Emoticons: Grinning: 😂 Face with Tears of Joy U+1F602: Emoji 1.0 in 2015 Emoticons see Face with Tears of Joy emoji: 😍 Smiling Face with Heart-Shaped Eyes U+1F60D: Emoji 1.0 in 2015 Emoticons see Face with Heart Eyes emoji: 🕴️
However, an equals sign, a number 8, a capital letter B or a capital letter X are also used to indicate normal eyes, widened eyes, those with glasses or those with crinkled eyes, respectively. Symbols for the mouth vary, e.g. ")" for a smiley face or "(" for a sad face. One can also add a "}" after the mouth character to indicate a beard.
Symbols and Pictographs Extended-A is a Unicode block containing emoji characters. It extends the set of symbols included in the Supplemental Symbols and Pictographs block. All of the characters in the Symbols and Pictographs Extended-A block are emoji .
The names from the mouseover text above work if used directly, and usually if condensed to a key word ("grinning" or "unamused" for example). The templates involving the cat have shortcuts like "cat wry", "heart-shaped" is abbreviated to "heart", "open mouth" is usually omitted, closed = "tightly-closed eyes".
Einstein and Szilard themselves named it the "Einstein Refrigerator" in the document shown in the article, notice the name in big letters and the signatures of both inventors. 77.215.46.17 20:59, 2 June 2010 (UTC) Here is support for moving this article to Einstein-Szilard refrigerator. Dannen, Geene (1997).