einstein
From Wiktionary, the free dictionary
See also: Einstein
Etymology 1
Named in honor of Albert Einstein, who explained the photoelectric effect.
Noun
einstein (plural einsteins)
- (photochemistry, dated) One mole of photons, regardless of frequency, as used to measure irradiance.
- The einstein (symbol E) is an obsolete unit with two conflicting definitions.
- (informal) A genius; a very smart person.
- Synonyms: see Thesaurus:intelligent person
- He's a prodigy — they call him their little einstein.
- (by extension, informal, sarcastic) An idiot; a very stupid person.
- Synonyms: see Thesaurus:idiot
- Yeah, that guy is a real einstein — he always finds a way to mess up the simplest order.
Derived terms
- (one mole of photons): microeinstein
Translations
See also
- (fool): no shit, Sherlock
Etymology 2
From German ein Stein, "one stone", coined by scientists in recent decades, but with tongue-in-cheek tacit acknowledgment of the homonymy with einstein and Einstein; "a pun playing with the famous scientist's name and the German term "ein Stein" for "one stone".[1]
Noun
einstein (plural einsteins)
- (mathematics, physics) A shape that can be repeated to cover a plane with a nonrepeating pattern.
- 2023 March 28, Siobhan Roberts, “Elusive ‘Einstein’ Solves a Longstanding Math Problem. And it all began with a hobbyist “messing about and experimenting with shapes””, in New York Times, retrieved 2023-03-28:
- In less poetic terms, an einstein is an “aperiodic monotile,” a shape that tiles a plane, or an infinite two-dimensional flat surface, but only in a nonrepeating pattern. (The term “einstein” comes from the German “ein stein,” or “one stone” — more loosely, “one tile” or “one shape.”)
See also
References
- "Klaassen, Bernhard (2022) “Forcing nonperiodic tilings with one tile using a seed”, in European Journal of Combinatorics, volume 100, number C, , page 103454
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