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Uncommon card · Science
Einstein coefficients, an Uncommon card
In atomic, molecular, and optical physics, the Einstein coefficients are quantities describing the probability of absorption or emission of a photon by an atom or molecule.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 67
- DEF
- 61
- Power
- 128
- Wikipedia reads a year
- 27,000
Power 128 (ATK + DEF): stronger than 65 % of WikiCards cards.
Einstein coefficients quiz: 3 questions
Three questions on the Einstein coefficients card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
These coefficients are named after Albert Einstein, who ______ them in 1916.
Answer
proposed. These coefficients are named after Albert Einstein, who proposed them in 1916. From the Einstein coefficients article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Demi Schuurs. Demi Schuurs 76 · Marine engineering 73 · Nicolas Malebranche 70 · Einstein coefficients 67 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- The Einstein A coefficients are related to the rate of spontaneous emission of light, and the Einstein B coefficients are related to the absorption and stimulated emission of light.
- Throughout this article, "light" refers to any electromagnetic radiation, not necessarily in the visible spectrum.
- These coefficients are named after Albert Einstein, who proposed them in 1916.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Einstein coefficients article was read about 27,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 67 and blocks with 61: each hit it takes is cut by 24 %.
How to get Einstein coefficients
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Einstein coefficients in the power ranking, all domains together.
- Slánský trialUncommon · History · ATK 68 DEF 60
- Bharatpur, NepalUncommon · Society · ATK 69 DEF 59
- Demi SchuursUncommon · Society · ATK 76 DEF 52
- VasubandhuUncommon · Society · ATK 70 DEF 58
- Capital gainUncommon · Society · ATK 66 DEF 62
- Healthcare industryUncommon · Science · ATK 68 DEF 60
Card lists
- Wikipedia quizNew questions every day
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- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Einstein coefficients (revision), CC BY-SA 4.0. Photo : User:Jhausauer, Public domain, Wikimedia Commons.
